Home / 60,547.40-90,829.20-21,116.60

Finding the Fourth Proportional to 60,547.40, 90,829.20 and 21,116.60

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Solution

The fourth proportional to 60,547.40, 90,829.20 and 21,116.60 is: 31,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,547.40 : 90,829.20 = 21,116.60 : x
  2. Step 2: Convert to fraction form
    60,547.40/90,829.20 = 21,116.60/x
  3. Step 3: Cross multiply
    60,547.40x = 90,829.20 × 21,116.60
  4. Step 4: Simplify right side
    60,547.40x = 1,918,003,884.72
  5. Step 5: Solve for x
    x = 1,918,003,884.72/60,547.40
  6. Step 6: Final answer
    x = 31,677.72

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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.