Home / 74,368.12-102,624.40-42,540.52

Finding the Fourth Proportional to 74,368.12, 102,624.40 and 42,540.52

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Solution

The fourth proportional to 74,368.12, 102,624.40 and 42,540.52 is: 58,703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,368.12 : 102,624.40 = 42,540.52 : x
  2. Step 2: Convert to fraction form
    74,368.12/102,624.40 = 42,540.52/x
  3. Step 3: Cross multiply
    74,368.12x = 102,624.40 × 42,540.52
  4. Step 4: Simplify right side
    74,368.12x = 4,365,695,340.69
  5. Step 5: Solve for x
    x = 4,365,695,340.69/74,368.12
  6. Step 6: Final answer
    x = 58,703.86

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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.