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Finding the Fourth Proportional to 70,113.65, 96,758.08 and 39,895.79

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Solution

The fourth proportional to 70,113.65, 96,758.08 and 39,895.79 is: 55,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,113.65 : 96,758.08 = 39,895.79 : x
  2. Step 2: Convert to fraction form
    70,113.65/96,758.08 = 39,895.79/x
  3. Step 3: Cross multiply
    70,113.65x = 96,758.08 × 39,895.79
  4. Step 4: Simplify right side
    70,113.65x = 3,860,239,456.95
  5. Step 5: Solve for x
    x = 3,860,239,456.95/70,113.65
  6. Step 6: Final answer
    x = 55,056.89

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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.