Home / 80,931.14-111,677.01-45,117.80

Finding the Fourth Proportional to 80,931.14, 111,677.01 and 45,117.80

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Solution

The fourth proportional to 80,931.14, 111,677.01 and 45,117.80 is: 62,258.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931.14 : 111,677.01 = 45,117.80 : x
  2. Step 2: Convert to fraction form
    80,931.14/111,677.01 = 45,117.80/x
  3. Step 3: Cross multiply
    80,931.14x = 111,677.01 × 45,117.80
  4. Step 4: Simplify right side
    80,931.14x = 5,038,621,001.78
  5. Step 5: Solve for x
    x = 5,038,621,001.78/80,931.14
  6. Step 6: Final answer
    x = 62,258.12

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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.