Home / 51,802.16-77,691.72-20,213.06

Finding the Fourth Proportional to 51,802.16, 77,691.72 and 20,213.06

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Solution

The fourth proportional to 51,802.16, 77,691.72 and 20,213.06 is: 30,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,802.16 : 77,691.72 = 20,213.06 : x
  2. Step 2: Convert to fraction form
    51,802.16/77,691.72 = 20,213.06/x
  3. Step 3: Cross multiply
    51,802.16x = 77,691.72 × 20,213.06
  4. Step 4: Simplify right side
    51,802.16x = 1,570,387,397.86
  5. Step 5: Solve for x
    x = 1,570,387,397.86/51,802.16
  6. Step 6: Final answer
    x = 30,315.09

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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.