Home / 70,981.20-97,956.95-39,152.12

Finding the Fourth Proportional to 70,981.20, 97,956.95 and 39,152.12

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Solution

The fourth proportional to 70,981.20, 97,956.95 and 39,152.12 is: 54,031.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,981.20 : 97,956.95 = 39,152.12 : x
  2. Step 2: Convert to fraction form
    70,981.20/97,956.95 = 39,152.12/x
  3. Step 3: Cross multiply
    70,981.20x = 97,956.95 × 39,152.12
  4. Step 4: Simplify right side
    70,981.20x = 3,835,221,575.69
  5. Step 5: Solve for x
    x = 3,835,221,575.69/70,981.20
  6. Step 6: Final answer
    x = 54,031.51

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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.