Home / 91,276.60-136,927.88-28,102

Finding the Fourth Proportional to 91,276.60, 136,927.88 and 28,102

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Solution

The fourth proportional to 91,276.60, 136,927.88 and 28,102 is: 42,157.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,276.60 : 136,927.88 = 28,102 : x
  2. Step 2: Convert to fraction form
    91,276.60/136,927.88 = 28,102/x
  3. Step 3: Cross multiply
    91,276.60x = 136,927.88 × 28,102
  4. Step 4: Simplify right side
    91,276.60x = 3,847,947,283.76
  5. Step 5: Solve for x
    x = 3,847,947,283.76/91,276.60
  6. Step 6: Final answer
    x = 42,157.00

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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.