Home / 70,338.31-97,076.10-40,116.70

Finding the Fourth Proportional to 70,338.31, 97,076.10 and 40,116.70

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Solution

The fourth proportional to 70,338.31, 97,076.10 and 40,116.70 is: 55,366.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,338.31 : 97,076.10 = 40,116.70 : x
  2. Step 2: Convert to fraction form
    70,338.31/97,076.10 = 40,116.70/x
  3. Step 3: Cross multiply
    70,338.31x = 97,076.10 × 40,116.70
  4. Step 4: Simplify right side
    70,338.31x = 3,894,372,881.16
  5. Step 5: Solve for x
    x = 3,894,372,881.16/70,338.31
  6. Step 6: Final answer
    x = 55,366.32

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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.