Home / 91,970.16-137,964.96-39,365.52

Finding the Fourth Proportional to 91,970.16, 137,964.96 and 39,365.52

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Solution

The fourth proportional to 91,970.16, 137,964.96 and 39,365.52 is: 59,052.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,970.16 : 137,964.96 = 39,365.52 : x
  2. Step 2: Convert to fraction form
    91,970.16/137,964.96 = 39,365.52/x
  3. Step 3: Cross multiply
    91,970.16x = 137,964.96 × 39,365.52
  4. Step 4: Simplify right side
    91,970.16x = 5,431,062,392.18
  5. Step 5: Solve for x
    x = 5,431,062,392.18/91,970.16
  6. Step 6: Final answer
    x = 59,052.44

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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.