Home / 74,272.95-102,487.23-42,443.91

Finding the Fourth Proportional to 74,272.95, 102,487.23 and 42,443.91

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Solution

The fourth proportional to 74,272.95, 102,487.23 and 42,443.91 is: 58,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.95 : 102,487.23 = 42,443.91 : x
  2. Step 2: Convert to fraction form
    74,272.95/102,487.23 = 42,443.91/x
  3. Step 3: Cross multiply
    74,272.95x = 102,487.23 × 42,443.91
  4. Step 4: Simplify right side
    74,272.95x = 4,349,958,766.27
  5. Step 5: Solve for x
    x = 4,349,958,766.27/74,272.95
  6. Step 6: Final answer
    x = 58,567.20

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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.