Home / 52,288.95-78,347.23-30,120.97

Finding the Fourth Proportional to 52,288.95, 78,347.23 and 30,120.97

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Solution

The fourth proportional to 52,288.95, 78,347.23 and 30,120.97 is: 45,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,288.95 : 78,347.23 = 30,120.97 : x
  2. Step 2: Convert to fraction form
    52,288.95/78,347.23 = 30,120.97/x
  3. Step 3: Cross multiply
    52,288.95x = 78,347.23 × 30,120.97
  4. Step 4: Simplify right side
    52,288.95x = 2,359,894,609.57
  5. Step 5: Solve for x
    x = 2,359,894,609.57/52,288.95
  6. Step 6: Final answer
    x = 45,131.80

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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.