Home / 70,881.31-97,830.37-40,687.04

Finding the Fourth Proportional to 70,881.31, 97,830.37 and 40,687.04

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Solution

The fourth proportional to 70,881.31, 97,830.37 and 40,687.04 is: 56,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,881.31 : 97,830.37 = 40,687.04 : x
  2. Step 2: Convert to fraction form
    70,881.31/97,830.37 = 40,687.04/x
  3. Step 3: Cross multiply
    70,881.31x = 97,830.37 × 40,687.04
  4. Step 4: Simplify right side
    70,881.31x = 3,980,428,177.40
  5. Step 5: Solve for x
    x = 3,980,428,177.40/70,881.31
  6. Step 6: Final answer
    x = 56,156.24

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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.