Home / 89,122.50-122,989.05-53,314.02

Finding the Fourth Proportional to 89,122.50, 122,989.05 and 53,314.02

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Solution

The fourth proportional to 89,122.50, 122,989.05 and 53,314.02 is: 73,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,122.50 : 122,989.05 = 53,314.02 : x
  2. Step 2: Convert to fraction form
    89,122.50/122,989.05 = 53,314.02/x
  3. Step 3: Cross multiply
    89,122.50x = 122,989.05 × 53,314.02
  4. Step 4: Simplify right side
    89,122.50x = 6,557,040,671.48
  5. Step 5: Solve for x
    x = 6,557,040,671.48/89,122.50
  6. Step 6: Final answer
    x = 73,573.35

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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.