Home / 70,912.02-97,857.78-40,284.90

Finding the Fourth Proportional to 70,912.02, 97,857.78 and 40,284.90

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Solution

The fourth proportional to 70,912.02, 97,857.78 and 40,284.90 is: 55,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,912.02 : 97,857.78 = 40,284.90 : x
  2. Step 2: Convert to fraction form
    70,912.02/97,857.78 = 40,284.90/x
  3. Step 3: Cross multiply
    70,912.02x = 97,857.78 × 40,284.90
  4. Step 4: Simplify right side
    70,912.02x = 3,942,190,881.52
  5. Step 5: Solve for x
    x = 3,942,190,881.52/70,912.02
  6. Step 6: Final answer
    x = 55,592.70

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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.