Home / 90,666.18-125,116.85-50,378.91

Finding the Fourth Proportional to 90,666.18, 125,116.85 and 50,378.91

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Solution

The fourth proportional to 90,666.18, 125,116.85 and 50,378.91 is: 69,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,666.18 : 125,116.85 = 50,378.91 : x
  2. Step 2: Convert to fraction form
    90,666.18/125,116.85 = 50,378.91/x
  3. Step 3: Cross multiply
    90,666.18x = 125,116.85 × 50,378.91
  4. Step 4: Simplify right side
    90,666.18x = 6,303,250,273.74
  5. Step 5: Solve for x
    x = 6,303,250,273.74/90,666.18
  6. Step 6: Final answer
    x = 69,521.51

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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.