Home / 53,718.80-74,038.11-39,348.10

Finding the Fourth Proportional to 53,718.80, 74,038.11 and 39,348.10

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Solution

The fourth proportional to 53,718.80, 74,038.11 and 39,348.10 is: 54,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,718.80 : 74,038.11 = 39,348.10 : x
  2. Step 2: Convert to fraction form
    53,718.80/74,038.11 = 39,348.10/x
  3. Step 3: Cross multiply
    53,718.80x = 74,038.11 × 39,348.10
  4. Step 4: Simplify right side
    53,718.80x = 2,913,258,956.09
  5. Step 5: Solve for x
    x = 2,913,258,956.09/53,718.80
  6. Step 6: Final answer
    x = 54,231.65

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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.