Home / 68,717.02-103,100.10-42,391.12

Finding the Fourth Proportional to 68,717.02, 103,100.10 and 42,391.12

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Solution

The fourth proportional to 68,717.02, 103,100.10 and 42,391.12 is: 63,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717.02 : 103,100.10 = 42,391.12 : x
  2. Step 2: Convert to fraction form
    68,717.02/103,100.10 = 42,391.12/x
  3. Step 3: Cross multiply
    68,717.02x = 103,100.10 × 42,391.12
  4. Step 4: Simplify right side
    68,717.02x = 4,370,528,711.11
  5. Step 5: Solve for x
    x = 4,370,528,711.11/68,717.02
  6. Step 6: Final answer
    x = 63,601.84

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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.