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Finding the Fourth Proportional to 82,800.98, 124,203.53 and 30,210.47

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Solution

The fourth proportional to 82,800.98, 124,203.53 and 30,210.47 is: 45,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,800.98 : 124,203.53 = 30,210.47 : x
  2. Step 2: Convert to fraction form
    82,800.98/124,203.53 = 30,210.47/x
  3. Step 3: Cross multiply
    82,800.98x = 124,203.53 × 30,210.47
  4. Step 4: Simplify right side
    82,800.98x = 3,752,246,767.30
  5. Step 5: Solve for x
    x = 3,752,246,767.30/82,800.98
  6. Step 6: Final answer
    x = 45,316.45

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1.5x scale

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.