Home / 66,787.18-92,168.62-45,012.76

Finding the Fourth Proportional to 66,787.18, 92,168.62 and 45,012.76

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Solution

The fourth proportional to 66,787.18, 92,168.62 and 45,012.76 is: 62,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,787.18 : 92,168.62 = 45,012.76 : x
  2. Step 2: Convert to fraction form
    66,787.18/92,168.62 = 45,012.76/x
  3. Step 3: Cross multiply
    66,787.18x = 92,168.62 × 45,012.76
  4. Step 4: Simplify right side
    66,787.18x = 4,148,763,628.64
  5. Step 5: Solve for x
    x = 4,148,763,628.64/66,787.18
  6. Step 6: Final answer
    x = 62,119.16

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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.