Home / 40,655.10-61,002.09-31,907.10

Finding the Fourth Proportional to 40,655.10, 61,002.09 and 31,907.10

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Solution

The fourth proportional to 40,655.10, 61,002.09 and 31,907.10 is: 47,875.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,655.10 : 61,002.09 = 31,907.10 : x
  2. Step 2: Convert to fraction form
    40,655.10/61,002.09 = 31,907.10/x
  3. Step 3: Cross multiply
    40,655.10x = 61,002.09 × 31,907.10
  4. Step 4: Simplify right side
    40,655.10x = 1,946,399,785.84
  5. Step 5: Solve for x
    x = 1,946,399,785.84/40,655.10
  6. Step 6: Final answer
    x = 47,875.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.