Home / 66,864.09-100,421.05-58,861.69

Finding the Fourth Proportional to 66,864.09, 100,421.05 and 58,861.69

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Solution

The fourth proportional to 66,864.09, 100,421.05 and 58,861.69 is: 88,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864.09 : 100,421.05 = 58,861.69 : x
  2. Step 2: Convert to fraction form
    66,864.09/100,421.05 = 58,861.69/x
  3. Step 3: Cross multiply
    66,864.09x = 100,421.05 × 58,861.69
  4. Step 4: Simplify right side
    66,864.09x = 5,910,952,714.57
  5. Step 5: Solve for x
    x = 5,910,952,714.57/66,864.09
  6. Step 6: Final answer
    x = 88,402.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.