Home / 65,342.89-90,159.27-38,475.58

Finding the Fourth Proportional to 65,342.89, 90,159.27 and 38,475.58

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Solution

The fourth proportional to 65,342.89, 90,159.27 and 38,475.58 is: 53,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,342.89 : 90,159.27 = 38,475.58 : x
  2. Step 2: Convert to fraction form
    65,342.89/90,159.27 = 38,475.58/x
  3. Step 3: Cross multiply
    65,342.89x = 90,159.27 × 38,475.58
  4. Step 4: Simplify right side
    65,342.89x = 3,468,930,205.63
  5. Step 5: Solve for x
    x = 3,468,930,205.63/65,342.89
  6. Step 6: Final answer
    x = 53,088.11

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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.