Home / 91,980.20-137,897.40-50,427.20

Finding the Fourth Proportional to 91,980.20, 137,897.40 and 50,427.20

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Solution

The fourth proportional to 91,980.20, 137,897.40 and 50,427.20 is: 75,600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,980.20 : 137,897.40 = 50,427.20 : x
  2. Step 2: Convert to fraction form
    91,980.20/137,897.40 = 50,427.20/x
  3. Step 3: Cross multiply
    91,980.20x = 137,897.40 × 50,427.20
  4. Step 4: Simplify right side
    91,980.20x = 6,953,779,769.28
  5. Step 5: Solve for x
    x = 6,953,779,769.28/91,980.20
  6. Step 6: Final answer
    x = 75,600.83

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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.