Home / 85,319.42-117,717.18-55,106.02

Finding the Fourth Proportional to 85,319.42, 117,717.18 and 55,106.02

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Solution

The fourth proportional to 85,319.42, 117,717.18 and 55,106.02 is: 76,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,319.42 : 117,717.18 = 55,106.02 : x
  2. Step 2: Convert to fraction form
    85,319.42/117,717.18 = 55,106.02/x
  3. Step 3: Cross multiply
    85,319.42x = 117,717.18 × 55,106.02
  4. Step 4: Simplify right side
    85,319.42x = 6,486,924,686.84
  5. Step 5: Solve for x
    x = 6,486,924,686.84/85,319.42
  6. Step 6: Final answer
    x = 76,031.05

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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.