Home / 60,140.68-83,012.16-38,921.40

Finding the Fourth Proportional to 60,140.68, 83,012.16 and 38,921.40

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Solution

The fourth proportional to 60,140.68, 83,012.16 and 38,921.40 is: 53,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,140.68 : 83,012.16 = 38,921.40 : x
  2. Step 2: Convert to fraction form
    60,140.68/83,012.16 = 38,921.40/x
  3. Step 3: Cross multiply
    60,140.68x = 83,012.16 × 38,921.40
  4. Step 4: Simplify right side
    60,140.68x = 3,230,949,484.22
  5. Step 5: Solve for x
    x = 3,230,949,484.22/60,140.68
  6. Step 6: Final answer
    x = 53,723.20

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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.