Home / 54,388.31-74,916.02-38,445.35

Finding the Fourth Proportional to 54,388.31, 74,916.02 and 38,445.35

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Solution

The fourth proportional to 54,388.31, 74,916.02 and 38,445.35 is: 52,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,388.31 : 74,916.02 = 38,445.35 : x
  2. Step 2: Convert to fraction form
    54,388.31/74,916.02 = 38,445.35/x
  3. Step 3: Cross multiply
    54,388.31x = 74,916.02 × 38,445.35
  4. Step 4: Simplify right side
    54,388.31x = 2,880,172,609.51
  5. Step 5: Solve for x
    x = 2,880,172,609.51/54,388.31
  6. Step 6: Final answer
    x = 52,955.73

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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.