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Finding the Fourth Proportional to 67,695.57, 101,559.58 and 20,948.45

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Solution

The fourth proportional to 67,695.57, 101,559.58 and 20,948.45 is: 31,427.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,695.57 : 101,559.58 = 20,948.45 : x
  2. Step 2: Convert to fraction form
    67,695.57/101,559.58 = 20,948.45/x
  3. Step 3: Cross multiply
    67,695.57x = 101,559.58 × 20,948.45
  4. Step 4: Simplify right side
    67,695.57x = 2,127,515,223.48
  5. Step 5: Solve for x
    x = 2,127,515,223.48/67,695.57
  6. Step 6: Final answer
    x = 31,427.69

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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.