Home / 90,981.32-125,555.47-52,743.65

Finding the Fourth Proportional to 90,981.32, 125,555.47 and 52,743.65

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Solution

The fourth proportional to 90,981.32, 125,555.47 and 52,743.65 is: 72,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,981.32 : 125,555.47 = 52,743.65 : x
  2. Step 2: Convert to fraction form
    90,981.32/125,555.47 = 52,743.65/x
  3. Step 3: Cross multiply
    90,981.32x = 125,555.47 × 52,743.65
  4. Step 4: Simplify right side
    90,981.32x = 6,622,253,005.63
  5. Step 5: Solve for x
    x = 6,622,253,005.63/90,981.32
  6. Step 6: Final answer
    x = 72,786.96

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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.