Home / 75,547.40-113,321.10-31,159.40

Finding the Fourth Proportional to 75,547.40, 113,321.10 and 31,159.40

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Solution

The fourth proportional to 75,547.40, 113,321.10 and 31,159.40 is: 46,739.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,547.40 : 113,321.10 = 31,159.40 : x
  2. Step 2: Convert to fraction form
    75,547.40/113,321.10 = 31,159.40/x
  3. Step 3: Cross multiply
    75,547.40x = 113,321.10 × 31,159.40
  4. Step 4: Simplify right side
    75,547.40x = 3,531,017,483.34
  5. Step 5: Solve for x
    x = 3,531,017,483.34/75,547.40
  6. Step 6: Final answer
    x = 46,739.10

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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.