Home / 70,878.31-97,826.23-40,684.04

Finding the Fourth Proportional to 70,878.31, 97,826.23 and 40,684.04

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Solution

The fourth proportional to 70,878.31, 97,826.23 and 40,684.04 is: 56,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,878.31 : 97,826.23 = 40,684.04 : x
  2. Step 2: Convert to fraction form
    70,878.31/97,826.23 = 40,684.04/x
  3. Step 3: Cross multiply
    70,878.31x = 97,826.23 × 40,684.04
  4. Step 4: Simplify right side
    70,878.31x = 3,979,966,182.94
  5. Step 5: Solve for x
    x = 3,979,966,182.94/70,878.31
  6. Step 6: Final answer
    x = 56,152.11

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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.