Home / 54,388.81-74,916.71-38,445.85

Finding the Fourth Proportional to 54,388.81, 74,916.71 and 38,445.85

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Solution

The fourth proportional to 54,388.81, 74,916.71 and 38,445.85 is: 52,956.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,388.81 : 74,916.71 = 38,445.85 : x
  2. Step 2: Convert to fraction form
    54,388.81/74,916.71 = 38,445.85/x
  3. Step 3: Cross multiply
    54,388.81x = 74,916.71 × 38,445.85
  4. Step 4: Simplify right side
    54,388.81x = 2,880,236,595.15
  5. Step 5: Solve for x
    x = 2,880,236,595.15/54,388.81
  6. Step 6: Final answer
    x = 52,956.42

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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.