Home / 90,065.72-124,208.07-54,193.46

Finding the Fourth Proportional to 90,065.72, 124,208.07 and 54,193.46

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Solution

The fourth proportional to 90,065.72, 124,208.07 and 54,193.46 is: 74,737.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,065.72 : 124,208.07 = 54,193.46 : x
  2. Step 2: Convert to fraction form
    90,065.72/124,208.07 = 54,193.46/x
  3. Step 3: Cross multiply
    90,065.72x = 124,208.07 × 54,193.46
  4. Step 4: Simplify right side
    90,065.72x = 6,731,264,248.96
  5. Step 5: Solve for x
    x = 6,731,264,248.96/90,065.72
  6. Step 6: Final answer
    x = 74,737.25

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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.