Home / 56,686.48-84,991.28-31,743.68

Finding the Fourth Proportional to 56,686.48, 84,991.28 and 31,743.68

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Solution

The fourth proportional to 56,686.48, 84,991.28 and 31,743.68 is: 47,593.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,686.48 : 84,991.28 = 31,743.68 : x
  2. Step 2: Convert to fraction form
    56,686.48/84,991.28 = 31,743.68/x
  3. Step 3: Cross multiply
    56,686.48x = 84,991.28 × 31,743.68
  4. Step 4: Simplify right side
    56,686.48x = 2,697,935,995.11
  5. Step 5: Solve for x
    x = 2,697,935,995.11/56,686.48
  6. Step 6: Final answer
    x = 47,593.99

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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.