Home / 91,728.34-126,467.92-59,405.84

Finding the Fourth Proportional to 91,728.34, 126,467.92 and 59,405.84

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Solution

The fourth proportional to 91,728.34, 126,467.92 and 59,405.84 is: 81,904.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,728.34 : 126,467.92 = 59,405.84 : x
  2. Step 2: Convert to fraction form
    91,728.34/126,467.92 = 59,405.84/x
  3. Step 3: Cross multiply
    91,728.34x = 126,467.92 × 59,405.84
  4. Step 4: Simplify right side
    91,728.34x = 7,512,933,386.82
  5. Step 5: Solve for x
    x = 7,512,933,386.82/91,728.34
  6. Step 6: Final answer
    x = 81,904.17

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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.