Home / 90,265.50-124,453.33-57,943.10

Finding the Fourth Proportional to 90,265.50, 124,453.33 and 57,943.10

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Solution

The fourth proportional to 90,265.50, 124,453.33 and 57,943.10 is: 79,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,265.50 : 124,453.33 = 57,943.10 : x
  2. Step 2: Convert to fraction form
    90,265.50/124,453.33 = 57,943.10/x
  3. Step 3: Cross multiply
    90,265.50x = 124,453.33 × 57,943.10
  4. Step 4: Simplify right side
    90,265.50x = 7,211,211,745.52
  5. Step 5: Solve for x
    x = 7,211,211,745.52/90,265.50
  6. Step 6: Final answer
    x = 79,888.90

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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.