Home / 91,914.92-126,856.28-56,125.68

Finding the Fourth Proportional to 91,914.92, 126,856.28 and 56,125.68

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Solution

The fourth proportional to 91,914.92, 126,856.28 and 56,125.68 is: 77,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,914.92 : 126,856.28 = 56,125.68 : x
  2. Step 2: Convert to fraction form
    91,914.92/126,856.28 = 56,125.68/x
  3. Step 3: Cross multiply
    91,914.92x = 126,856.28 × 56,125.68
  4. Step 4: Simplify right side
    91,914.92x = 7,119,894,977.27
  5. Step 5: Solve for x
    x = 7,119,894,977.27/91,914.92
  6. Step 6: Final answer
    x = 77,461.80

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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.