Home / 42,265.40-63,410.10-21,180.02

Finding the Fourth Proportional to 42,265.40, 63,410.10 and 21,180.02

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Solution

The fourth proportional to 42,265.40, 63,410.10 and 21,180.02 is: 31,776.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,265.40 : 63,410.10 = 21,180.02 : x
  2. Step 2: Convert to fraction form
    42,265.40/63,410.10 = 21,180.02/x
  3. Step 3: Cross multiply
    42,265.40x = 63,410.10 × 21,180.02
  4. Step 4: Simplify right side
    42,265.40x = 1,343,027,186.20
  5. Step 5: Solve for x
    x = 1,343,027,186.20/42,265.40
  6. Step 6: Final answer
    x = 31,776.04

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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.