Home / 49,787.56-74,681.34-40,987.18

Finding the Fourth Proportional to 49,787.56, 74,681.34 and 40,987.18

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Solution

The fourth proportional to 49,787.56, 74,681.34 and 40,987.18 is: 61,480.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,787.56 : 74,681.34 = 40,987.18 : x
  2. Step 2: Convert to fraction form
    49,787.56/74,681.34 = 40,987.18/x
  3. Step 3: Cross multiply
    49,787.56x = 74,681.34 × 40,987.18
  4. Step 4: Simplify right side
    49,787.56x = 3,060,977,525.22
  5. Step 5: Solve for x
    x = 3,060,977,525.22/49,787.56
  6. Step 6: Final answer
    x = 61,480.77

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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.