Home / 91,511.58-137,250.46-28,319.92

Finding the Fourth Proportional to 91,511.58, 137,250.46 and 28,319.92

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Solution

The fourth proportional to 91,511.58, 137,250.46 and 28,319.92 is: 42,474.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,511.58 : 137,250.46 = 28,319.92 : x
  2. Step 2: Convert to fraction form
    91,511.58/137,250.46 = 28,319.92/x
  3. Step 3: Cross multiply
    91,511.58x = 137,250.46 × 28,319.92
  4. Step 4: Simplify right side
    91,511.58x = 3,886,922,047.16
  5. Step 5: Solve for x
    x = 3,886,922,047.16/91,511.58
  6. Step 6: Final answer
    x = 42,474.65

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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.