Home / 91,006.48-136,423.28-31,803.56

Finding the Fourth Proportional to 91,006.48, 136,423.28 and 31,803.56

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Solution

The fourth proportional to 91,006.48, 136,423.28 and 31,803.56 is: 47,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,006.48 : 136,423.28 = 31,803.56 : x
  2. Step 2: Convert to fraction form
    91,006.48/136,423.28 = 31,803.56/x
  3. Step 3: Cross multiply
    91,006.48x = 136,423.28 × 31,803.56
  4. Step 4: Simplify right side
    91,006.48x = 4,338,745,970.88
  5. Step 5: Solve for x
    x = 4,338,745,970.88/91,006.48
  6. Step 6: Final answer
    x = 47,675.13

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1.5x scale

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.