Home / 84,300.90-126,431.10-48,685.20

Finding the Fourth Proportional to 84,300.90, 126,431.10 and 48,685.20

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Solution

The fourth proportional to 84,300.90, 126,431.10 and 48,685.20 is: 73,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,300.90 : 126,431.10 = 48,685.20 : x
  2. Step 2: Convert to fraction form
    84,300.90/126,431.10 = 48,685.20/x
  3. Step 3: Cross multiply
    84,300.90x = 126,431.10 × 48,685.20
  4. Step 4: Simplify right side
    84,300.90x = 6,155,323,389.72
  5. Step 5: Solve for x
    x = 6,155,323,389.72/84,300.90
  6. Step 6: Final answer
    x = 73,016.11

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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.