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Finding the Fourth Proportional to 71,673.32, 99,010.32 and 57,427.76

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Solution

The fourth proportional to 71,673.32, 99,010.32 and 57,427.76 is: 79,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,673.32 : 99,010.32 = 57,427.76 : x
  2. Step 2: Convert to fraction form
    71,673.32/99,010.32 = 57,427.76/x
  3. Step 3: Cross multiply
    71,673.32x = 99,010.32 × 57,427.76
  4. Step 4: Simplify right side
    71,673.32x = 5,685,940,894.48
  5. Step 5: Solve for x
    x = 5,685,940,894.48/71,673.32
  6. Step 6: Final answer
    x = 79,331.35

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1.5x scale

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.