Home / 62,139.68-85,758.72-38,280.32

Finding the Fourth Proportional to 62,139.68, 85,758.72 and 38,280.32

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Solution

The fourth proportional to 62,139.68, 85,758.72 and 38,280.32 is: 52,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,139.68 : 85,758.72 = 38,280.32 : x
  2. Step 2: Convert to fraction form
    62,139.68/85,758.72 = 38,280.32/x
  3. Step 3: Cross multiply
    62,139.68x = 85,758.72 × 38,280.32
  4. Step 4: Simplify right side
    62,139.68x = 3,282,871,244.39
  5. Step 5: Solve for x
    x = 3,282,871,244.39/62,139.68
  6. Step 6: Final answer
    x = 52,830.51

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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.