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Finding the Fourth Proportional to 72,061.60, 107,800.80 and 63,313.60

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Solution

The fourth proportional to 72,061.60, 107,800.80 and 63,313.60 is: 94,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,061.60 : 107,800.80 = 63,313.60 : x
  2. Step 2: Convert to fraction form
    72,061.60/107,800.80 = 63,313.60/x
  3. Step 3: Cross multiply
    72,061.60x = 107,800.80 × 63,313.60
  4. Step 4: Simplify right side
    72,061.60x = 6,825,256,730.88
  5. Step 5: Solve for x
    x = 6,825,256,730.88/72,061.60
  6. Step 6: Final answer
    x = 94,714.20

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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.