Home / 49,918.17-74,856.58-20,315.91

Finding the Fourth Proportional to 49,918.17, 74,856.58 and 20,315.91

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Solution

The fourth proportional to 49,918.17, 74,856.58 and 20,315.91 is: 30,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,918.17 : 74,856.58 = 20,315.91 : x
  2. Step 2: Convert to fraction form
    49,918.17/74,856.58 = 20,315.91/x
  3. Step 3: Cross multiply
    49,918.17x = 74,856.58 × 20,315.91
  4. Step 4: Simplify right side
    49,918.17x = 1,520,779,542.19
  5. Step 5: Solve for x
    x = 1,520,779,542.19/49,918.17
  6. Step 6: Final answer
    x = 30,465.45

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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.