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Finding the Fourth Proportional to 88,729.68, 122,445.34 and 50,488.40

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Solution

The fourth proportional to 88,729.68, 122,445.34 and 50,488.40 is: 69,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,729.68 : 122,445.34 = 50,488.40 : x
  2. Step 2: Convert to fraction form
    88,729.68/122,445.34 = 50,488.40/x
  3. Step 3: Cross multiply
    88,729.68x = 122,445.34 × 50,488.40
  4. Step 4: Simplify right side
    88,729.68x = 6,182,069,304.06
  5. Step 5: Solve for x
    x = 6,182,069,304.06/88,729.68
  6. Step 6: Final answer
    x = 69,673.07

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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.