Home / 65,868.09-90,898.08-39,023.88

Finding the Fourth Proportional to 65,868.09, 90,898.08 and 39,023.88

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Solution

The fourth proportional to 65,868.09, 90,898.08 and 39,023.88 is: 53,853.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,868.09 : 90,898.08 = 39,023.88 : x
  2. Step 2: Convert to fraction form
    65,868.09/90,898.08 = 39,023.88/x
  3. Step 3: Cross multiply
    65,868.09x = 90,898.08 × 39,023.88
  4. Step 4: Simplify right side
    65,868.09x = 3,547,195,766.15
  5. Step 5: Solve for x
    x = 3,547,195,766.15/65,868.09
  6. Step 6: Final answer
    x = 53,853.02

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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.