Home / 67,767.89-93,521.01-39,475.40

Finding the Fourth Proportional to 67,767.89, 93,521.01 and 39,475.40

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Solution

The fourth proportional to 67,767.89, 93,521.01 and 39,475.40 is: 54,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,767.89 : 93,521.01 = 39,475.40 : x
  2. Step 2: Convert to fraction form
    67,767.89/93,521.01 = 39,475.40/x
  3. Step 3: Cross multiply
    67,767.89x = 93,521.01 × 39,475.40
  4. Step 4: Simplify right side
    67,767.89x = 3,691,779,278.15
  5. Step 5: Solve for x
    x = 3,691,779,278.15/67,767.89
  6. Step 6: Final answer
    x = 54,476.82

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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.