Home / 90,055.44-135,043.50-47,925.36

Finding the Fourth Proportional to 90,055.44, 135,043.50 and 47,925.36

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Solution

The fourth proportional to 90,055.44, 135,043.50 and 47,925.36 is: 71,866.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,055.44 : 135,043.50 = 47,925.36 : x
  2. Step 2: Convert to fraction form
    90,055.44/135,043.50 = 47,925.36/x
  3. Step 3: Cross multiply
    90,055.44x = 135,043.50 × 47,925.36
  4. Step 4: Simplify right side
    90,055.44x = 6,472,008,353.16
  5. Step 5: Solve for x
    x = 6,472,008,353.16/90,055.44
  6. Step 6: Final answer
    x = 71,866.93

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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.