Home / 78,437.68-108,235.38-44,443.60

Finding the Fourth Proportional to 78,437.68, 108,235.38 and 44,443.60

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Solution

The fourth proportional to 78,437.68, 108,235.38 and 44,443.60 is: 61,327.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,437.68 : 108,235.38 = 44,443.60 : x
  2. Step 2: Convert to fraction form
    78,437.68/108,235.38 = 44,443.60/x
  3. Step 3: Cross multiply
    78,437.68x = 108,235.38 × 44,443.60
  4. Step 4: Simplify right side
    78,437.68x = 4,810,369,934.57
  5. Step 5: Solve for x
    x = 4,810,369,934.57/78,437.68
  6. Step 6: Final answer
    x = 61,327.28

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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.