Home / 57,486.36-79,325.68-42,387.17

Finding the Fourth Proportional to 57,486.36, 79,325.68 and 42,387.17

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Solution

The fourth proportional to 57,486.36, 79,325.68 and 42,387.17 is: 58,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,486.36 : 79,325.68 = 42,387.17 : x
  2. Step 2: Convert to fraction form
    57,486.36/79,325.68 = 42,387.17/x
  3. Step 3: Cross multiply
    57,486.36x = 79,325.68 × 42,387.17
  4. Step 4: Simplify right side
    57,486.36x = 3,362,391,329.72
  5. Step 5: Solve for x
    x = 3,362,391,329.72/57,486.36
  6. Step 6: Final answer
    x = 58,490.25

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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.