Home / 70,300.11-97,016.73-40,080.57

Finding the Fourth Proportional to 70,300.11, 97,016.73 and 40,080.57

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Solution

The fourth proportional to 70,300.11, 97,016.73 and 40,080.57 is: 55,312.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,300.11 : 97,016.73 = 40,080.57 : x
  2. Step 2: Convert to fraction form
    70,300.11/97,016.73 = 40,080.57/x
  3. Step 3: Cross multiply
    70,300.11x = 97,016.73 × 40,080.57
  4. Step 4: Simplify right side
    70,300.11x = 3,888,485,837.94
  5. Step 5: Solve for x
    x = 3,888,485,837.94/70,300.11
  6. Step 6: Final answer
    x = 55,312.66

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1.5x scale

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.