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Finding the Fourth Proportional to 54,407.64, 75,080.64 and 30,535.68

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Solution

The fourth proportional to 54,407.64, 75,080.64 and 30,535.68 is: 42,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,407.64 : 75,080.64 = 30,535.68 : x
  2. Step 2: Convert to fraction form
    54,407.64/75,080.64 = 30,535.68/x
  3. Step 3: Cross multiply
    54,407.64x = 75,080.64 × 30,535.68
  4. Step 4: Simplify right side
    54,407.64x = 2,292,638,397.24
  5. Step 5: Solve for x
    x = 2,292,638,397.24/54,407.64
  6. Step 6: Final answer
    x = 42,138.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.