Home / 70,640.42-97,489.19-40,435.21

Finding the Fourth Proportional to 70,640.42, 97,489.19 and 40,435.21

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Solution

The fourth proportional to 70,640.42, 97,489.19 and 40,435.21 is: 55,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,640.42 : 97,489.19 = 40,435.21 : x
  2. Step 2: Convert to fraction form
    70,640.42/97,489.19 = 40,435.21/x
  3. Step 3: Cross multiply
    70,640.42x = 97,489.19 × 40,435.21
  4. Step 4: Simplify right side
    70,640.42x = 3,941,995,727.74
  5. Step 5: Solve for x
    x = 3,941,995,727.74/70,640.42
  6. Step 6: Final answer
    x = 55,803.69

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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.