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Finding the Fourth Proportional to 90,946, 125,525.96 and 59,150.80

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Solution

The fourth proportional to 90,946, 125,525.96 and 59,150.80 is: 81,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,946 : 125,525.96 = 59,150.80 : x
  2. Step 2: Convert to fraction form
    90,946/125,525.96 = 59,150.80/x
  3. Step 3: Cross multiply
    90,946x = 125,525.96 × 59,150.80
  4. Step 4: Simplify right side
    90,946x = 7,424,960,954.77
  5. Step 5: Solve for x
    x = 7,424,960,954.77/90,946
  6. Step 6: Final answer
    x = 81,641.42

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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.