Home / 74,217.85-102,421.34-42,386.52

Finding the Fourth Proportional to 74,217.85, 102,421.34 and 42,386.52

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Solution

The fourth proportional to 74,217.85, 102,421.34 and 42,386.52 is: 58,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.85 : 102,421.34 = 42,386.52 : x
  2. Step 2: Convert to fraction form
    74,217.85/102,421.34 = 42,386.52/x
  3. Step 3: Cross multiply
    74,217.85x = 102,421.34 × 42,386.52
  4. Step 4: Simplify right side
    74,217.85x = 4,341,284,176.34
  5. Step 5: Solve for x
    x = 4,341,284,176.34/74,217.85
  6. Step 6: Final answer
    x = 58,493.80

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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.