Home / 90,641.86-125,127.57-54,360.58

Finding the Fourth Proportional to 90,641.86, 125,127.57 and 54,360.58

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Solution

The fourth proportional to 90,641.86, 125,127.57 and 54,360.58 is: 75,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,641.86 : 125,127.57 = 54,360.58 : x
  2. Step 2: Convert to fraction form
    90,641.86/125,127.57 = 54,360.58/x
  3. Step 3: Cross multiply
    90,641.86x = 125,127.57 × 54,360.58
  4. Step 4: Simplify right side
    90,641.86x = 6,802,007,279.19
  5. Step 5: Solve for x
    x = 6,802,007,279.19/90,641.86
  6. Step 6: Final answer
    x = 75,042.67

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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.