Home / 70,348.10-97,089.64-40,126.46

Finding the Fourth Proportional to 70,348.10, 97,089.64 and 40,126.46

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Solution

The fourth proportional to 70,348.10, 97,089.64 and 40,126.46 is: 55,379.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,348.10 : 97,089.64 = 40,126.46 : x
  2. Step 2: Convert to fraction form
    70,348.10/97,089.64 = 40,126.46/x
  3. Step 3: Cross multiply
    70,348.10x = 97,089.64 × 40,126.46
  4. Step 4: Simplify right side
    70,348.10x = 3,895,862,970.11
  5. Step 5: Solve for x
    x = 3,895,862,970.11/70,348.10
  6. Step 6: Final answer
    x = 55,379.79

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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.