Home / 65,343.39-90,159.93-38,476.08

Finding the Fourth Proportional to 65,343.39, 90,159.93 and 38,476.08

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Solution

The fourth proportional to 65,343.39, 90,159.93 and 38,476.08 is: 53,088.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,343.39 : 90,159.93 = 38,476.08 : x
  2. Step 2: Convert to fraction form
    65,343.39/90,159.93 = 38,476.08/x
  3. Step 3: Cross multiply
    65,343.39x = 90,159.93 × 38,476.08
  4. Step 4: Simplify right side
    65,343.39x = 3,469,000,679.47
  5. Step 5: Solve for x
    x = 3,469,000,679.47/65,343.39
  6. Step 6: Final answer
    x = 53,088.78

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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.