Home / 58,066.20-87,111.60-18,651

Finding the Fourth Proportional to 58,066.20, 87,111.60 and 18,651

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Solution

The fourth proportional to 58,066.20, 87,111.60 and 18,651 is: 27,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,066.20 : 87,111.60 = 18,651 : x
  2. Step 2: Convert to fraction form
    58,066.20/87,111.60 = 18,651/x
  3. Step 3: Cross multiply
    58,066.20x = 87,111.60 × 18,651
  4. Step 4: Simplify right side
    58,066.20x = 1,624,718,451.60
  5. Step 5: Solve for x
    x = 1,624,718,451.60/58,066.20
  6. Step 6: Final answer
    x = 27,980.45

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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.