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Finding the Fourth Proportional to 53,204.64, 79,820.64 and 19,925.20

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Solution

The fourth proportional to 53,204.64, 79,820.64 and 19,925.20 is: 29,892.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,204.64 : 79,820.64 = 19,925.20 : x
  2. Step 2: Convert to fraction form
    53,204.64/79,820.64 = 19,925.20/x
  3. Step 3: Cross multiply
    53,204.64x = 79,820.64 × 19,925.20
  4. Step 4: Simplify right side
    53,204.64x = 1,590,442,216.13
  5. Step 5: Solve for x
    x = 1,590,442,216.13/53,204.64
  6. Step 6: Final answer
    x = 29,892.92

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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.