Home / 70,209.08-96,888.66-38,378.21

Finding the Fourth Proportional to 70,209.08, 96,888.66 and 38,378.21

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Solution

The fourth proportional to 70,209.08, 96,888.66 and 38,378.21 is: 52,961.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.08 : 96,888.66 = 38,378.21 : x
  2. Step 2: Convert to fraction form
    70,209.08/96,888.66 = 38,378.21/x
  3. Step 3: Cross multiply
    70,209.08x = 96,888.66 × 38,378.21
  4. Step 4: Simplify right side
    70,209.08x = 3,718,412,711.74
  5. Step 5: Solve for x
    x = 3,718,412,711.74/70,209.08
  6. Step 6: Final answer
    x = 52,961.99

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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.