Home / 81,071.55-111,878.45-45,261.25

Finding the Fourth Proportional to 81,071.55, 111,878.45 and 45,261.25

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Solution

The fourth proportional to 81,071.55, 111,878.45 and 45,261.25 is: 62,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,071.55 : 111,878.45 = 45,261.25 : x
  2. Step 2: Convert to fraction form
    81,071.55/111,878.45 = 45,261.25/x
  3. Step 3: Cross multiply
    81,071.55x = 111,878.45 × 45,261.25
  4. Step 4: Simplify right side
    81,071.55x = 5,063,758,158.79
  5. Step 5: Solve for x
    x = 5,063,758,158.79/81,071.55
  6. Step 6: Final answer
    x = 62,460.36

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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.