Home / 54,478.13-75,178.08-30,278.98

Finding the Fourth Proportional to 54,478.13, 75,178.08 and 30,278.98

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Solution

The fourth proportional to 54,478.13, 75,178.08 and 30,278.98 is: 41,784.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,478.13 : 75,178.08 = 30,278.98 : x
  2. Step 2: Convert to fraction form
    54,478.13/75,178.08 = 30,278.98/x
  3. Step 3: Cross multiply
    54,478.13x = 75,178.08 × 30,278.98
  4. Step 4: Simplify right side
    54,478.13x = 2,276,315,204.87
  5. Step 5: Solve for x
    x = 2,276,315,204.87/54,478.13
  6. Step 6: Final answer
    x = 41,784.02

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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.