Home / 57,486.83-79,309.80-42,415.46

Finding the Fourth Proportional to 57,486.83, 79,309.80 and 42,415.46

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Solution

The fourth proportional to 57,486.83, 79,309.80 and 42,415.46 is: 58,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,486.83 : 79,309.80 = 42,415.46 : x
  2. Step 2: Convert to fraction form
    57,486.83/79,309.80 = 42,415.46/x
  3. Step 3: Cross multiply
    57,486.83x = 79,309.80 × 42,415.46
  4. Step 4: Simplify right side
    57,486.83x = 3,363,961,252.96
  5. Step 5: Solve for x
    x = 3,363,961,252.96/57,486.83
  6. Step 6: Final answer
    x = 58,517.08

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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.