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Finding the Fourth Proportional to 64,262.20, 88,686.90 and 47,343.80

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Solution

The fourth proportional to 64,262.20, 88,686.90 and 47,343.80 is: 65,338.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,262.20 : 88,686.90 = 47,343.80 : x
  2. Step 2: Convert to fraction form
    64,262.20/88,686.90 = 47,343.80/x
  3. Step 3: Cross multiply
    64,262.20x = 88,686.90 × 47,343.80
  4. Step 4: Simplify right side
    64,262.20x = 4,198,774,856.22
  5. Step 5: Solve for x
    x = 4,198,774,856.22/64,262.20
  6. Step 6: Final answer
    x = 65,338.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.