Home / 67,155.60-92,667.45-38,856

Finding the Fourth Proportional to 67,155.60, 92,667.45 and 38,856

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Solution

The fourth proportional to 67,155.60, 92,667.45 and 38,856 is: 53,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,155.60 : 92,667.45 = 38,856 : x
  2. Step 2: Convert to fraction form
    67,155.60/92,667.45 = 38,856/x
  3. Step 3: Cross multiply
    67,155.60x = 92,667.45 × 38,856
  4. Step 4: Simplify right side
    67,155.60x = 3,600,686,437.20
  5. Step 5: Solve for x
    x = 3,600,686,437.20/67,155.60
  6. Step 6: Final answer
    x = 53,617.07

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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.