Home / 85,558.50-127,711.08-75,458.30

Finding the Fourth Proportional to 85,558.50, 127,711.08 and 75,458.30

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Solution

The fourth proportional to 85,558.50, 127,711.08 and 75,458.30 is: 112,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,558.50 : 127,711.08 = 75,458.30 : x
  2. Step 2: Convert to fraction form
    85,558.50/127,711.08 = 75,458.30/x
  3. Step 3: Cross multiply
    85,558.50x = 127,711.08 × 75,458.30
  4. Step 4: Simplify right side
    85,558.50x = 9,636,860,349.41
  5. Step 5: Solve for x
    x = 9,636,860,349.41/85,558.50
  6. Step 6: Final answer
    x = 112,634.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.