Home / 70,742.66-97,622.83-38,911.55

Finding the Fourth Proportional to 70,742.66, 97,622.83 and 38,911.55

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Solution

The fourth proportional to 70,742.66, 97,622.83 and 38,911.55 is: 53,696.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,742.66 : 97,622.83 = 38,911.55 : x
  2. Step 2: Convert to fraction form
    70,742.66/97,622.83 = 38,911.55/x
  3. Step 3: Cross multiply
    70,742.66x = 97,622.83 × 38,911.55
  4. Step 4: Simplify right side
    70,742.66x = 3,798,655,777.46
  5. Step 5: Solve for x
    x = 3,798,655,777.46/70,742.66
  6. Step 6: Final answer
    x = 53,696.82

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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.