Home / 66,943.31-92,384.51-40,080.47

Finding the Fourth Proportional to 66,943.31, 92,384.51 and 40,080.47

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Solution

The fourth proportional to 66,943.31, 92,384.51 and 40,080.47 is: 55,312.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.31 : 92,384.51 = 40,080.47 : x
  2. Step 2: Convert to fraction form
    66,943.31/92,384.51 = 40,080.47/x
  3. Step 3: Cross multiply
    66,943.31x = 92,384.51 × 40,080.47
  4. Step 4: Simplify right side
    66,943.31x = 3,702,813,919.19
  5. Step 5: Solve for x
    x = 3,702,813,919.19/66,943.31
  6. Step 6: Final answer
    x = 55,312.68

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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.