Home / 53,981.52-74,491.29-31,318.74

Finding the Fourth Proportional to 53,981.52, 74,491.29 and 31,318.74

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Solution

The fourth proportional to 53,981.52, 74,491.29 and 31,318.74 is: 43,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981.52 : 74,491.29 = 31,318.74 : x
  2. Step 2: Convert to fraction form
    53,981.52/74,491.29 = 31,318.74/x
  3. Step 3: Cross multiply
    53,981.52x = 74,491.29 × 31,318.74
  4. Step 4: Simplify right side
    53,981.52x = 2,332,973,343.77
  5. Step 5: Solve for x
    x = 2,332,973,343.77/53,981.52
  6. Step 6: Final answer
    x = 43,218.00

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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.