Home / 90,511.92-124,961.40-70,330.68

Finding the Fourth Proportional to 90,511.92, 124,961.40 and 70,330.68

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Solution

The fourth proportional to 90,511.92, 124,961.40 and 70,330.68 is: 97,099.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,511.92 : 124,961.40 = 70,330.68 : x
  2. Step 2: Convert to fraction form
    90,511.92/124,961.40 = 70,330.68/x
  3. Step 3: Cross multiply
    90,511.92x = 124,961.40 × 70,330.68
  4. Step 4: Simplify right side
    90,511.92x = 8,788,620,235.75
  5. Step 5: Solve for x
    x = 8,788,620,235.75/90,511.92
  6. Step 6: Final answer
    x = 97,099.04

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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.