Home / 67,987.12-93,815-39,302.24

Finding the Fourth Proportional to 67,987.12, 93,815 and 39,302.24

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Solution

The fourth proportional to 67,987.12, 93,815 and 39,302.24 is: 54,232.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,987.12 : 93,815 = 39,302.24 : x
  2. Step 2: Convert to fraction form
    67,987.12/93,815 = 39,302.24/x
  3. Step 3: Cross multiply
    67,987.12x = 93,815 × 39,302.24
  4. Step 4: Simplify right side
    67,987.12x = 3,687,139,645.60
  5. Step 5: Solve for x
    x = 3,687,139,645.60/67,987.12
  6. Step 6: Final answer
    x = 54,232.91

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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.