Home / 74,437.45-102,728.28-42,605.62

Finding the Fourth Proportional to 74,437.45, 102,728.28 and 42,605.62

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Solution

The fourth proportional to 74,437.45, 102,728.28 and 42,605.62 is: 58,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,437.45 : 102,728.28 = 42,605.62 : x
  2. Step 2: Convert to fraction form
    74,437.45/102,728.28 = 42,605.62/x
  3. Step 3: Cross multiply
    74,437.45x = 102,728.28 × 42,605.62
  4. Step 4: Simplify right side
    74,437.45x = 4,376,802,060.93
  5. Step 5: Solve for x
    x = 4,376,802,060.93/74,437.45
  6. Step 6: Final answer
    x = 58,798.39

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1.5x scale

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.