Home / 91,564.32-126,348.32-51,272.48

Finding the Fourth Proportional to 91,564.32, 126,348.32 and 51,272.48

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Solution

The fourth proportional to 91,564.32, 126,348.32 and 51,272.48 is: 70,750.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,564.32 : 126,348.32 = 51,272.48 : x
  2. Step 2: Convert to fraction form
    91,564.32/126,348.32 = 51,272.48/x
  3. Step 3: Cross multiply
    91,564.32x = 126,348.32 × 51,272.48
  4. Step 4: Simplify right side
    91,564.32x = 6,478,191,710.23
  5. Step 5: Solve for x
    x = 6,478,191,710.23/91,564.32
  6. Step 6: Final answer
    x = 70,750.18

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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.