Home / 91,964.16-137,955.96-39,359.52

Finding the Fourth Proportional to 91,964.16, 137,955.96 and 39,359.52

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Solution

The fourth proportional to 91,964.16, 137,955.96 and 39,359.52 is: 59,043.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,964.16 : 137,955.96 = 39,359.52 : x
  2. Step 2: Convert to fraction form
    91,964.16/137,955.96 = 39,359.52/x
  3. Step 3: Cross multiply
    91,964.16x = 137,955.96 × 39,359.52
  4. Step 4: Simplify right side
    91,964.16x = 5,429,880,366.74
  5. Step 5: Solve for x
    x = 5,429,880,366.74/91,964.16
  6. Step 6: Final answer
    x = 59,043.44

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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.