Home / 90,438.04-124,810.88-50,155.66

Finding the Fourth Proportional to 90,438.04, 124,810.88 and 50,155.66

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Solution

The fourth proportional to 90,438.04, 124,810.88 and 50,155.66 is: 69,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438.04 : 124,810.88 = 50,155.66 : x
  2. Step 2: Convert to fraction form
    90,438.04/124,810.88 = 50,155.66/x
  3. Step 3: Cross multiply
    90,438.04x = 124,810.88 × 50,155.66
  4. Step 4: Simplify right side
    90,438.04x = 6,259,972,061.58
  5. Step 5: Solve for x
    x = 6,259,972,061.58/90,438.04
  6. Step 6: Final answer
    x = 69,218.35

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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.