Home / 49,412.10-74,123.55-47,856.90

Finding the Fourth Proportional to 49,412.10, 74,123.55 and 47,856.90

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Solution

The fourth proportional to 49,412.10, 74,123.55 and 47,856.90 is: 71,790.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,412.10 : 74,123.55 = 47,856.90 : x
  2. Step 2: Convert to fraction form
    49,412.10/74,123.55 = 47,856.90/x
  3. Step 3: Cross multiply
    49,412.10x = 74,123.55 × 47,856.90
  4. Step 4: Simplify right side
    49,412.10x = 3,547,323,320.00
  5. Step 5: Solve for x
    x = 3,547,323,320.00/49,412.10
  6. Step 6: Final answer
    x = 71,790.58

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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.