Home / 74,911.50-112,385.73-22,320.78

Finding the Fourth Proportional to 74,911.50, 112,385.73 and 22,320.78

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Solution

The fourth proportional to 74,911.50, 112,385.73 and 22,320.78 is: 33,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,911.50 : 112,385.73 = 22,320.78 : x
  2. Step 2: Convert to fraction form
    74,911.50/112,385.73 = 22,320.78/x
  3. Step 3: Cross multiply
    74,911.50x = 112,385.73 × 22,320.78
  4. Step 4: Simplify right side
    74,911.50x = 2,508,537,154.47
  5. Step 5: Solve for x
    x = 2,508,537,154.47/74,911.50
  6. Step 6: Final answer
    x = 33,486.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.