Home / 74,437.36-102,728.15-42,605.53

Finding the Fourth Proportional to 74,437.36, 102,728.15 and 42,605.53

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Solution

The fourth proportional to 74,437.36, 102,728.15 and 42,605.53 is: 58,798.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,437.36 : 102,728.15 = 42,605.53 : x
  2. Step 2: Convert to fraction form
    74,437.36/102,728.15 = 42,605.53/x
  3. Step 3: Cross multiply
    74,437.36x = 102,728.15 × 42,605.53
  4. Step 4: Simplify right side
    74,437.36x = 4,376,787,276.67
  5. Step 5: Solve for x
    x = 4,376,787,276.67/74,437.36
  6. Step 6: Final answer
    x = 58,798.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.