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Finding the Fourth Proportional to 52,598.16, 78,894 and 20,995.20

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Solution

The fourth proportional to 52,598.16, 78,894 and 20,995.20 is: 31,491.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,598.16 : 78,894 = 20,995.20 : x
  2. Step 2: Convert to fraction form
    52,598.16/78,894 = 20,995.20/x
  3. Step 3: Cross multiply
    52,598.16x = 78,894 × 20,995.20
  4. Step 4: Simplify right side
    52,598.16x = 1,656,395,308.80
  5. Step 5: Solve for x
    x = 1,656,395,308.80/52,598.16
  6. Step 6: Final answer
    x = 31,491.51

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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.