Home / 83,478.14-115,200.18-45,237.77

Finding the Fourth Proportional to 83,478.14, 115,200.18 and 45,237.77

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Solution

The fourth proportional to 83,478.14, 115,200.18 and 45,237.77 is: 62,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,478.14 : 115,200.18 = 45,237.77 : x
  2. Step 2: Convert to fraction form
    83,478.14/115,200.18 = 45,237.77/x
  3. Step 3: Cross multiply
    83,478.14x = 115,200.18 × 45,237.77
  4. Step 4: Simplify right side
    83,478.14x = 5,211,398,670.80
  5. Step 5: Solve for x
    x = 5,211,398,670.80/83,478.14
  6. Step 6: Final answer
    x = 62,428.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.