Home / 54,071.28-74,637.72-40,680.36

Finding the Fourth Proportional to 54,071.28, 74,637.72 and 40,680.36

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Solution

The fourth proportional to 54,071.28, 74,637.72 and 40,680.36 is: 56,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,071.28 : 74,637.72 = 40,680.36 : x
  2. Step 2: Convert to fraction form
    54,071.28/74,637.72 = 40,680.36/x
  3. Step 3: Cross multiply
    54,071.28x = 74,637.72 × 40,680.36
  4. Step 4: Simplify right side
    54,071.28x = 3,036,289,319.18
  5. Step 5: Solve for x
    x = 3,036,289,319.18/54,071.28
  6. Step 6: Final answer
    x = 56,153.46

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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.