Home / 52,436.02-78,665.55-38,542.90

Finding the Fourth Proportional to 52,436.02, 78,665.55 and 38,542.90

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Solution

The fourth proportional to 52,436.02, 78,665.55 and 38,542.90 is: 57,822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,436.02 : 78,665.55 = 38,542.90 : x
  2. Step 2: Convert to fraction form
    52,436.02/78,665.55 = 38,542.90/x
  3. Step 3: Cross multiply
    52,436.02x = 78,665.55 × 38,542.90
  4. Step 4: Simplify right side
    52,436.02x = 3,031,998,427.10
  5. Step 5: Solve for x
    x = 3,031,998,427.10/52,436.02
  6. Step 6: Final answer
    x = 57,822.82

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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.