Home / 85,512.03-127,641.84-75,411.93

Finding the Fourth Proportional to 85,512.03, 127,641.84 and 75,411.93

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Solution

The fourth proportional to 85,512.03, 127,641.84 and 75,411.93 is: 112,565.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,512.03 : 127,641.84 = 75,411.93 : x
  2. Step 2: Convert to fraction form
    85,512.03/127,641.84 = 75,411.93/x
  3. Step 3: Cross multiply
    85,512.03x = 127,641.84 × 75,411.93
  4. Step 4: Simplify right side
    85,512.03x = 9,625,717,503.15
  5. Step 5: Solve for x
    x = 9,625,717,503.15/85,512.03
  6. Step 6: Final answer
    x = 112,565.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.