Home / 58,900.42-81,238.04-40,781.47

Finding the Fourth Proportional to 58,900.42, 81,238.04 and 40,781.47

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Solution

The fourth proportional to 58,900.42, 81,238.04 and 40,781.47 is: 56,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,900.42 : 81,238.04 = 40,781.47 : x
  2. Step 2: Convert to fraction form
    58,900.42/81,238.04 = 40,781.47/x
  3. Step 3: Cross multiply
    58,900.42x = 81,238.04 × 40,781.47
  4. Step 4: Simplify right side
    58,900.42x = 3,313,006,746.62
  5. Step 5: Solve for x
    x = 3,313,006,746.62/58,900.42
  6. Step 6: Final answer
    x = 56,247.59

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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.