Home / 54,381.08-74,966.46-38,437.40

Finding the Fourth Proportional to 54,381.08, 74,966.46 and 38,437.40

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Solution

The fourth proportional to 54,381.08, 74,966.46 and 38,437.40 is: 52,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,381.08 : 74,966.46 = 38,437.40 : x
  2. Step 2: Convert to fraction form
    54,381.08/74,966.46 = 38,437.40/x
  3. Step 3: Cross multiply
    54,381.08x = 74,966.46 × 38,437.40
  4. Step 4: Simplify right side
    54,381.08x = 2,881,515,809.60
  5. Step 5: Solve for x
    x = 2,881,515,809.60/54,381.08
  6. Step 6: Final answer
    x = 52,987.47

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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.