Home / 49,699.72-74,547.54-20,117.80

Finding the Fourth Proportional to 49,699.72, 74,547.54 and 20,117.80

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Solution

The fourth proportional to 49,699.72, 74,547.54 and 20,117.80 is: 30,175.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,699.72 : 74,547.54 = 20,117.80 : x
  2. Step 2: Convert to fraction form
    49,699.72/74,547.54 = 20,117.80/x
  3. Step 3: Cross multiply
    49,699.72x = 74,547.54 × 20,117.80
  4. Step 4: Simplify right side
    49,699.72x = 1,499,732,500.21
  5. Step 5: Solve for x
    x = 1,499,732,500.21/49,699.72
  6. Step 6: Final answer
    x = 30,175.87

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1.5x scale

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.