Home / 70,158-96,824.70-38,331.69

Finding the Fourth Proportional to 70,158, 96,824.70 and 38,331.69

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Solution

The fourth proportional to 70,158, 96,824.70 and 38,331.69 is: 52,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,158 : 96,824.70 = 38,331.69 : x
  2. Step 2: Convert to fraction form
    70,158/96,824.70 = 38,331.69/x
  3. Step 3: Cross multiply
    70,158x = 96,824.70 × 38,331.69
  4. Step 4: Simplify right side
    70,158x = 3,711,454,384.74
  5. Step 5: Solve for x
    x = 3,711,454,384.74/70,158
  6. Step 6: Final answer
    x = 52,901.37

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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.