Home / 45,356.12-68,038.02-12,076.18

Finding the Fourth Proportional to 45,356.12, 68,038.02 and 12,076.18

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Solution

The fourth proportional to 45,356.12, 68,038.02 and 12,076.18 is: 18,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,356.12 : 68,038.02 = 12,076.18 : x
  2. Step 2: Convert to fraction form
    45,356.12/68,038.02 = 12,076.18/x
  3. Step 3: Cross multiply
    45,356.12x = 68,038.02 × 12,076.18
  4. Step 4: Simplify right side
    45,356.12x = 821,639,376.36
  5. Step 5: Solve for x
    x = 821,639,376.36/45,356.12
  6. Step 6: Final answer
    x = 18,115.29

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1.5x scale

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.