Home / 42,120.75-58,134.06-25,126.05

Finding the Fourth Proportional to 42,120.75, 58,134.06 and 25,126.05

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Solution

The fourth proportional to 42,120.75, 58,134.06 and 25,126.05 is: 34,678.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.75 : 58,134.06 = 25,126.05 : x
  2. Step 2: Convert to fraction form
    42,120.75/58,134.06 = 25,126.05/x
  3. Step 3: Cross multiply
    42,120.75x = 58,134.06 × 25,126.05
  4. Step 4: Simplify right side
    42,120.75x = 1,460,679,298.26
  5. Step 5: Solve for x
    x = 1,460,679,298.26/42,120.75
  6. Step 6: Final answer
    x = 34,678.38

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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.