Home / 91,821.68-126,677.76-53,038.88

Finding the Fourth Proportional to 91,821.68, 126,677.76 and 53,038.88

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Solution

The fourth proportional to 91,821.68, 126,677.76 and 53,038.88 is: 73,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,821.68 : 126,677.76 = 53,038.88 : x
  2. Step 2: Convert to fraction form
    91,821.68/126,677.76 = 53,038.88/x
  3. Step 3: Cross multiply
    91,821.68x = 126,677.76 × 53,038.88
  4. Step 4: Simplify right side
    91,821.68x = 6,718,846,511.31
  5. Step 5: Solve for x
    x = 6,718,846,511.31/91,821.68
  6. Step 6: Final answer
    x = 73,172.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.