Home / 60,569.20-90,821.40-21,127.60

Finding the Fourth Proportional to 60,569.20, 90,821.40 and 21,127.60

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Solution

The fourth proportional to 60,569.20, 90,821.40 and 21,127.60 is: 31,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,569.20 : 90,821.40 = 21,127.60 : x
  2. Step 2: Convert to fraction form
    60,569.20/90,821.40 = 21,127.60/x
  3. Step 3: Cross multiply
    60,569.20x = 90,821.40 × 21,127.60
  4. Step 4: Simplify right side
    60,569.20x = 1,918,838,210.64
  5. Step 5: Solve for x
    x = 1,918,838,210.64/60,569.20
  6. Step 6: Final answer
    x = 31,680.10

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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.