Home / 70,435.32-97,191.36-40,218.72

Finding the Fourth Proportional to 70,435.32, 97,191.36 and 40,218.72

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Solution

The fourth proportional to 70,435.32, 97,191.36 and 40,218.72 is: 55,496.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,435.32 : 97,191.36 = 40,218.72 : x
  2. Step 2: Convert to fraction form
    70,435.32/97,191.36 = 40,218.72/x
  3. Step 3: Cross multiply
    70,435.32x = 97,191.36 × 40,218.72
  4. Step 4: Simplify right side
    70,435.32x = 3,908,912,094.26
  5. Step 5: Solve for x
    x = 3,908,912,094.26/70,435.32
  6. Step 6: Final answer
    x = 55,496.48

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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.