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Finding the Fourth Proportional to 70,981.95, 97,957.98 and 39,152.87

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Solution

The fourth proportional to 70,981.95, 97,957.98 and 39,152.87 is: 54,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,981.95 : 97,957.98 = 39,152.87 : x
  2. Step 2: Convert to fraction form
    70,981.95/97,957.98 = 39,152.87/x
  3. Step 3: Cross multiply
    70,981.95x = 97,957.98 × 39,152.87
  4. Step 4: Simplify right side
    70,981.95x = 3,835,335,566.61
  5. Step 5: Solve for x
    x = 3,835,335,566.61/70,981.95
  6. Step 6: Final answer
    x = 54,032.55

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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.