Home / 83,128.08-124,731-48,097.20

Finding the Fourth Proportional to 83,128.08, 124,731 and 48,097.20

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Solution

The fourth proportional to 83,128.08, 124,731 and 48,097.20 is: 72,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,128.08 : 124,731 = 48,097.20 : x
  2. Step 2: Convert to fraction form
    83,128.08/124,731 = 48,097.20/x
  3. Step 3: Cross multiply
    83,128.08x = 124,731 × 48,097.20
  4. Step 4: Simplify right side
    83,128.08x = 5,999,211,853.20
  5. Step 5: Solve for x
    x = 5,999,211,853.20/83,128.08
  6. Step 6: Final answer
    x = 72,168.30

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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.