Home / 70,290.40-97,003.14-40,080.16

Finding the Fourth Proportional to 70,290.40, 97,003.14 and 40,080.16

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Solution

The fourth proportional to 70,290.40, 97,003.14 and 40,080.16 is: 55,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,290.40 : 97,003.14 = 40,080.16 : x
  2. Step 2: Convert to fraction form
    70,290.40/97,003.14 = 40,080.16/x
  3. Step 3: Cross multiply
    70,290.40x = 97,003.14 × 40,080.16
  4. Step 4: Simplify right side
    70,290.40x = 3,887,901,371.70
  5. Step 5: Solve for x
    x = 3,887,901,371.70/70,290.40
  6. Step 6: Final answer
    x = 55,311.98

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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.