Home / 45,376.32-68,041.02-20,395.02

Finding the Fourth Proportional to 45,376.32, 68,041.02 and 20,395.02

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Solution

The fourth proportional to 45,376.32, 68,041.02 and 20,395.02 is: 30,581.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,376.32 : 68,041.02 = 20,395.02 : x
  2. Step 2: Convert to fraction form
    45,376.32/68,041.02 = 20,395.02/x
  3. Step 3: Cross multiply
    45,376.32x = 68,041.02 × 20,395.02
  4. Step 4: Simplify right side
    45,376.32x = 1,387,697,963.72
  5. Step 5: Solve for x
    x = 1,387,697,963.72/45,376.32
  6. Step 6: Final answer
    x = 30,581.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.