Home / 74,715.18-103,106.99-42,449.86

Finding the Fourth Proportional to 74,715.18, 103,106.99 and 42,449.86

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Solution

The fourth proportional to 74,715.18, 103,106.99 and 42,449.86 is: 58,580.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715.18 : 103,106.99 = 42,449.86 : x
  2. Step 2: Convert to fraction form
    74,715.18/103,106.99 = 42,449.86/x
  3. Step 3: Cross multiply
    74,715.18x = 103,106.99 × 42,449.86
  4. Step 4: Simplify right side
    74,715.18x = 4,376,877,290.52
  5. Step 5: Solve for x
    x = 4,376,877,290.52/74,715.18
  6. Step 6: Final answer
    x = 58,580.83

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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.