Home / 48,479.06-66,919.22-28,342.40

Finding the Fourth Proportional to 48,479.06, 66,919.22 and 28,342.40

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Solution

The fourth proportional to 48,479.06, 66,919.22 and 28,342.40 is: 39,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,479.06 : 66,919.22 = 28,342.40 : x
  2. Step 2: Convert to fraction form
    48,479.06/66,919.22 = 28,342.40/x
  3. Step 3: Cross multiply
    48,479.06x = 66,919.22 × 28,342.40
  4. Step 4: Simplify right side
    48,479.06x = 1,896,650,824.62
  5. Step 5: Solve for x
    x = 1,896,650,824.62/48,479.06
  6. Step 6: Final answer
    x = 39,123.10

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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.