Home / 42,629.80-63,944.70-38,401.60

Finding the Fourth Proportional to 42,629.80, 63,944.70 and 38,401.60

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Solution

The fourth proportional to 42,629.80, 63,944.70 and 38,401.60 is: 57,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,629.80 : 63,944.70 = 38,401.60 : x
  2. Step 2: Convert to fraction form
    42,629.80/63,944.70 = 38,401.60/x
  3. Step 3: Cross multiply
    42,629.80x = 63,944.70 × 38,401.60
  4. Step 4: Simplify right side
    42,629.80x = 2,455,578,791.52
  5. Step 5: Solve for x
    x = 2,455,578,791.52/42,629.80
  6. Step 6: Final answer
    x = 57,602.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.