Home / 90,176.39-124,445.72-54,368.69

Finding the Fourth Proportional to 90,176.39, 124,445.72 and 54,368.69

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Solution

The fourth proportional to 90,176.39, 124,445.72 and 54,368.69 is: 75,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,176.39 : 124,445.72 = 54,368.69 : x
  2. Step 2: Convert to fraction form
    90,176.39/124,445.72 = 54,368.69/x
  3. Step 3: Cross multiply
    90,176.39x = 124,445.72 × 54,368.69
  4. Step 4: Simplify right side
    90,176.39x = 6,765,951,219.54
  5. Step 5: Solve for x
    x = 6,765,951,219.54/90,176.39
  6. Step 6: Final answer
    x = 75,030.19

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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.