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Finding the Fourth Proportional to 73,698.30, 110,547.45 and 21,113.10

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Solution

The fourth proportional to 73,698.30, 110,547.45 and 21,113.10 is: 31,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,698.30 : 110,547.45 = 21,113.10 : x
  2. Step 2: Convert to fraction form
    73,698.30/110,547.45 = 21,113.10/x
  3. Step 3: Cross multiply
    73,698.30x = 110,547.45 × 21,113.10
  4. Step 4: Simplify right side
    73,698.30x = 2,333,999,366.60
  5. Step 5: Solve for x
    x = 2,333,999,366.60/73,698.30
  6. Step 6: Final answer
    x = 31,669.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.