Home / 42,702.10-64,053.15-40,282.90

Finding the Fourth Proportional to 42,702.10, 64,053.15 and 40,282.90

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Solution

The fourth proportional to 42,702.10, 64,053.15 and 40,282.90 is: 60,424.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,702.10 : 64,053.15 = 40,282.90 : x
  2. Step 2: Convert to fraction form
    42,702.10/64,053.15 = 40,282.90/x
  3. Step 3: Cross multiply
    42,702.10x = 64,053.15 × 40,282.90
  4. Step 4: Simplify right side
    42,702.10x = 2,580,246,636.14
  5. Step 5: Solve for x
    x = 2,580,246,636.14/42,702.10
  6. Step 6: Final answer
    x = 60,424.35

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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.