Home / 65,240.17-90,029.90-38,384.42

Finding the Fourth Proportional to 65,240.17, 90,029.90 and 38,384.42

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Solution

The fourth proportional to 65,240.17, 90,029.90 and 38,384.42 is: 52,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,240.17 : 90,029.90 = 38,384.42 : x
  2. Step 2: Convert to fraction form
    65,240.17/90,029.90 = 38,384.42/x
  3. Step 3: Cross multiply
    65,240.17x = 90,029.90 × 38,384.42
  4. Step 4: Simplify right side
    65,240.17x = 3,455,745,139.97
  5. Step 5: Solve for x
    x = 3,455,745,139.97/65,240.17
  6. Step 6: Final answer
    x = 52,969.59

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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.