Home / 91,435.76-126,165.48-53,717.84

Finding the Fourth Proportional to 91,435.76, 126,165.48 and 53,717.84

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Solution

The fourth proportional to 91,435.76, 126,165.48 and 53,717.84 is: 74,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,435.76 : 126,165.48 = 53,717.84 : x
  2. Step 2: Convert to fraction form
    91,435.76/126,165.48 = 53,717.84/x
  3. Step 3: Cross multiply
    91,435.76x = 126,165.48 × 53,717.84
  4. Step 4: Simplify right side
    91,435.76x = 6,777,337,068.16
  5. Step 5: Solve for x
    x = 6,777,337,068.16/91,435.76
  6. Step 6: Final answer
    x = 74,121.30

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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.