Home / 81,253.60-112,178.40-51,064.48

Finding the Fourth Proportional to 81,253.60, 112,178.40 and 51,064.48

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Solution

The fourth proportional to 81,253.60, 112,178.40 and 51,064.48 is: 70,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,253.60 : 112,178.40 = 51,064.48 : x
  2. Step 2: Convert to fraction form
    81,253.60/112,178.40 = 51,064.48/x
  3. Step 3: Cross multiply
    81,253.60x = 112,178.40 × 51,064.48
  4. Step 4: Simplify right side
    81,253.60x = 5,728,331,663.23
  5. Step 5: Solve for x
    x = 5,728,331,663.23/81,253.60
  6. Step 6: Final answer
    x = 70,499.42

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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.