Home / 54,386.40-75,052.08-30,518.88

Finding the Fourth Proportional to 54,386.40, 75,052.08 and 30,518.88

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Solution

The fourth proportional to 54,386.40, 75,052.08 and 30,518.88 is: 42,115.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,386.40 : 75,052.08 = 30,518.88 : x
  2. Step 2: Convert to fraction form
    54,386.40/75,052.08 = 30,518.88/x
  3. Step 3: Cross multiply
    54,386.40x = 75,052.08 × 30,518.88
  4. Step 4: Simplify right side
    54,386.40x = 2,290,505,423.27
  5. Step 5: Solve for x
    x = 2,290,505,423.27/54,386.40
  6. Step 6: Final answer
    x = 42,115.41

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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.