Home / 71,125.47-98,155.98-40,910.76

Finding the Fourth Proportional to 71,125.47, 98,155.98 and 40,910.76

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Solution

The fourth proportional to 71,125.47, 98,155.98 and 40,910.76 is: 56,458.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,125.47 : 98,155.98 = 40,910.76 : x
  2. Step 2: Convert to fraction form
    71,125.47/98,155.98 = 40,910.76/x
  3. Step 3: Cross multiply
    71,125.47x = 98,155.98 × 40,910.76
  4. Step 4: Simplify right side
    71,125.47x = 4,015,635,740.34
  5. Step 5: Solve for x
    x = 4,015,635,740.34/71,125.47
  6. Step 6: Final answer
    x = 56,458.48

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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.