Home / 48,780.24-67,255.56-39,818.64

Finding the Fourth Proportional to 48,780.24, 67,255.56 and 39,818.64

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Solution

The fourth proportional to 48,780.24, 67,255.56 and 39,818.64 is: 54,899.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,780.24 : 67,255.56 = 39,818.64 : x
  2. Step 2: Convert to fraction form
    48,780.24/67,255.56 = 39,818.64/x
  3. Step 3: Cross multiply
    48,780.24x = 67,255.56 × 39,818.64
  4. Step 4: Simplify right side
    48,780.24x = 2,678,024,931.64
  5. Step 5: Solve for x
    x = 2,678,024,931.64/48,780.24
  6. Step 6: Final answer
    x = 54,899.79

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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.