Home / 70,856.04-97,780.12-39,027.92

Finding the Fourth Proportional to 70,856.04, 97,780.12 and 39,027.92

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Solution

The fourth proportional to 70,856.04, 97,780.12 and 39,027.92 is: 53,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,856.04 : 97,780.12 = 39,027.92 : x
  2. Step 2: Convert to fraction form
    70,856.04/97,780.12 = 39,027.92/x
  3. Step 3: Cross multiply
    70,856.04x = 97,780.12 × 39,027.92
  4. Step 4: Simplify right side
    70,856.04x = 3,816,154,700.95
  5. Step 5: Solve for x
    x = 3,816,154,700.95/70,856.04
  6. Step 6: Final answer
    x = 53,857.86

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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.