Home / 70,209.04-96,888.12-38,379.76

Finding the Fourth Proportional to 70,209.04, 96,888.12 and 38,379.76

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Solution

The fourth proportional to 70,209.04, 96,888.12 and 38,379.76 is: 52,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.04 : 96,888.12 = 38,379.76 : x
  2. Step 2: Convert to fraction form
    70,209.04/96,888.12 = 38,379.76/x
  3. Step 3: Cross multiply
    70,209.04x = 96,888.12 × 38,379.76
  4. Step 4: Simplify right side
    70,209.04x = 3,718,542,792.45
  5. Step 5: Solve for x
    x = 3,718,542,792.45/70,209.04
  6. Step 6: Final answer
    x = 52,963.87

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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.