Home / 81,335.90-112,240.49-45,036.59

Finding the Fourth Proportional to 81,335.90, 112,240.49 and 45,036.59

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Solution

The fourth proportional to 81,335.90, 112,240.49 and 45,036.59 is: 62,148.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.90 : 112,240.49 = 45,036.59 : x
  2. Step 2: Convert to fraction form
    81,335.90/112,240.49 = 45,036.59/x
  3. Step 3: Cross multiply
    81,335.90x = 112,240.49 × 45,036.59
  4. Step 4: Simplify right side
    81,335.90x = 5,054,929,248.01
  5. Step 5: Solve for x
    x = 5,054,929,248.01/81,335.90
  6. Step 6: Final answer
    x = 62,148.81

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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.