Home / 54,279.02-81,471-26,218.74

Finding the Fourth Proportional to 54,279.02, 81,471 and 26,218.74

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Solution

The fourth proportional to 54,279.02, 81,471 and 26,218.74 is: 39,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,279.02 : 81,471 = 26,218.74 : x
  2. Step 2: Convert to fraction form
    54,279.02/81,471 = 26,218.74/x
  3. Step 3: Cross multiply
    54,279.02x = 81,471 × 26,218.74
  4. Step 4: Simplify right side
    54,279.02x = 2,136,066,966.54
  5. Step 5: Solve for x
    x = 2,136,066,966.54/54,279.02
  6. Step 6: Final answer
    x = 39,353.45

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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.