Home / 91,838.36-137,810.74-38,525.63

Finding the Fourth Proportional to 91,838.36, 137,810.74 and 38,525.63

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Solution

The fourth proportional to 91,838.36, 137,810.74 and 38,525.63 is: 57,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,838.36 : 137,810.74 = 38,525.63 : x
  2. Step 2: Convert to fraction form
    91,838.36/137,810.74 = 38,525.63/x
  3. Step 3: Cross multiply
    91,838.36x = 137,810.74 × 38,525.63
  4. Step 4: Simplify right side
    91,838.36x = 5,309,244,974.49
  5. Step 5: Solve for x
    x = 5,309,244,974.49/91,838.36
  6. Step 6: Final answer
    x = 57,810.76

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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.