Home / 84,386.64-126,505.47-31,833.03

Finding the Fourth Proportional to 84,386.64, 126,505.47 and 31,833.03

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Solution

The fourth proportional to 84,386.64, 126,505.47 and 31,833.03 is: 47,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,386.64 : 126,505.47 = 31,833.03 : x
  2. Step 2: Convert to fraction form
    84,386.64/126,505.47 = 31,833.03/x
  3. Step 3: Cross multiply
    84,386.64x = 126,505.47 × 31,833.03
  4. Step 4: Simplify right side
    84,386.64x = 4,027,052,421.67
  5. Step 5: Solve for x
    x = 4,027,052,421.67/84,386.64
  6. Step 6: Final answer
    x = 47,721.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.