Home / 70,880.31-97,818.93-40,665.38

Finding the Fourth Proportional to 70,880.31, 97,818.93 and 40,665.38

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Solution

The fourth proportional to 70,880.31, 97,818.93 and 40,665.38 is: 56,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,880.31 : 97,818.93 = 40,665.38 : x
  2. Step 2: Convert to fraction form
    70,880.31/97,818.93 = 40,665.38/x
  3. Step 3: Cross multiply
    70,880.31x = 97,818.93 × 40,665.38
  4. Step 4: Simplify right side
    70,880.31x = 3,977,843,470.55
  5. Step 5: Solve for x
    x = 3,977,843,470.55/70,880.31
  6. Step 6: Final answer
    x = 56,120.57

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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.