Home / 55,330.68-76,356.54-31,465.20

Finding the Fourth Proportional to 55,330.68, 76,356.54 and 31,465.20

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Solution

The fourth proportional to 55,330.68, 76,356.54 and 31,465.20 is: 43,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,330.68 : 76,356.54 = 31,465.20 : x
  2. Step 2: Convert to fraction form
    55,330.68/76,356.54 = 31,465.20/x
  3. Step 3: Cross multiply
    55,330.68x = 76,356.54 × 31,465.20
  4. Step 4: Simplify right side
    55,330.68x = 2,402,573,802.41
  5. Step 5: Solve for x
    x = 2,402,573,802.41/55,330.68
  6. Step 6: Final answer
    x = 43,422.09

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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.