Home / 90,530.55-124,981.65-61,893.27

Finding the Fourth Proportional to 90,530.55, 124,981.65 and 61,893.27

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Solution

The fourth proportional to 90,530.55, 124,981.65 and 61,893.27 is: 85,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,530.55 : 124,981.65 = 61,893.27 : x
  2. Step 2: Convert to fraction form
    90,530.55/124,981.65 = 61,893.27/x
  3. Step 3: Cross multiply
    90,530.55x = 124,981.65 × 61,893.27
  4. Step 4: Simplify right side
    90,530.55x = 7,735,523,008.50
  5. Step 5: Solve for x
    x = 7,735,523,008.50/90,530.55
  6. Step 6: Final answer
    x = 85,446.55

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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.