Home / 91,095.40-125,712.30-50,811.76

Finding the Fourth Proportional to 91,095.40, 125,712.30 and 50,811.76

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Solution

The fourth proportional to 91,095.40, 125,712.30 and 50,811.76 is: 70,120.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,095.40 : 125,712.30 = 50,811.76 : x
  2. Step 2: Convert to fraction form
    91,095.40/125,712.30 = 50,811.76/x
  3. Step 3: Cross multiply
    91,095.40x = 125,712.30 × 50,811.76
  4. Step 4: Simplify right side
    91,095.40x = 6,387,663,216.65
  5. Step 5: Solve for x
    x = 6,387,663,216.65/91,095.40
  6. Step 6: Final answer
    x = 70,120.59

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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.