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Finding the Fourth Proportional to 84,483.76, 126,613.54 and 70,471.24

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Solution

The fourth proportional to 84,483.76, 126,613.54 and 70,471.24 is: 105,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,483.76 : 126,613.54 = 70,471.24 : x
  2. Step 2: Convert to fraction form
    84,483.76/126,613.54 = 70,471.24/x
  3. Step 3: Cross multiply
    84,483.76x = 126,613.54 × 70,471.24
  4. Step 4: Simplify right side
    84,483.76x = 8,922,613,164.59
  5. Step 5: Solve for x
    x = 8,922,613,164.59/84,483.76
  6. Step 6: Final answer
    x = 105,613.35

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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.