Home / 52,223.16-78,360.64-20,655.88

Finding the Fourth Proportional to 52,223.16, 78,360.64 and 20,655.88

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Solution

The fourth proportional to 52,223.16, 78,360.64 and 20,655.88 is: 30,994.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,223.16 : 78,360.64 = 20,655.88 : x
  2. Step 2: Convert to fraction form
    52,223.16/78,360.64 = 20,655.88/x
  3. Step 3: Cross multiply
    52,223.16x = 78,360.64 × 20,655.88
  4. Step 4: Simplify right side
    52,223.16x = 1,618,607,729.02
  5. Step 5: Solve for x
    x = 1,618,607,729.02/52,223.16
  6. Step 6: Final answer
    x = 30,994.06

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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.