Home / 70,881.06-97,830.35-40,687.10

Finding the Fourth Proportional to 70,881.06, 97,830.35 and 40,687.10

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Solution

The fourth proportional to 70,881.06, 97,830.35 and 40,687.10 is: 56,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,881.06 : 97,830.35 = 40,687.10 : x
  2. Step 2: Convert to fraction form
    70,881.06/97,830.35 = 40,687.10/x
  3. Step 3: Cross multiply
    70,881.06x = 97,830.35 × 40,687.10
  4. Step 4: Simplify right side
    70,881.06x = 3,980,433,233.49
  5. Step 5: Solve for x
    x = 3,980,433,233.49/70,881.06
  6. Step 6: Final answer
    x = 56,156.51

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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.