Home / 91,813.30-137,611.95-52,407.70

Finding the Fourth Proportional to 91,813.30, 137,611.95 and 52,407.70

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Solution

The fourth proportional to 91,813.30, 137,611.95 and 52,407.70 is: 78,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,813.30 : 137,611.95 = 52,407.70 : x
  2. Step 2: Convert to fraction form
    91,813.30/137,611.95 = 52,407.70/x
  3. Step 3: Cross multiply
    91,813.30x = 137,611.95 × 52,407.70
  4. Step 4: Simplify right side
    91,813.30x = 7,211,925,792.02
  5. Step 5: Solve for x
    x = 7,211,925,792.02/91,813.30
  6. Step 6: Final answer
    x = 78,549.90

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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.