Home / 91,941.24-137,953.98-54,575.40

Finding the Fourth Proportional to 91,941.24, 137,953.98 and 54,575.40

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Solution

The fourth proportional to 91,941.24, 137,953.98 and 54,575.40 is: 81,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,941.24 : 137,953.98 = 54,575.40 : x
  2. Step 2: Convert to fraction form
    91,941.24/137,953.98 = 54,575.40/x
  3. Step 3: Cross multiply
    91,941.24x = 137,953.98 × 54,575.40
  4. Step 4: Simplify right side
    91,941.24x = 7,528,893,640.09
  5. Step 5: Solve for x
    x = 7,528,893,640.09/91,941.24
  6. Step 6: Final answer
    x = 81,888.10

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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.