Home / 71,143.08-98,195.89-40,931.49

Finding the Fourth Proportional to 71,143.08, 98,195.89 and 40,931.49

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Solution

The fourth proportional to 71,143.08, 98,195.89 and 40,931.49 is: 56,496.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,143.08 : 98,195.89 = 40,931.49 : x
  2. Step 2: Convert to fraction form
    71,143.08/98,195.89 = 40,931.49/x
  3. Step 3: Cross multiply
    71,143.08x = 98,195.89 × 40,931.49
  4. Step 4: Simplify right side
    71,143.08x = 4,019,303,884.92
  5. Step 5: Solve for x
    x = 4,019,303,884.92/71,143.08
  6. Step 6: Final answer
    x = 56,496.07

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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.