Home / 72,948.29-109,434.09-30,828.77

Finding the Fourth Proportional to 72,948.29, 109,434.09 and 30,828.77

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Solution

The fourth proportional to 72,948.29, 109,434.09 and 30,828.77 is: 46,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,948.29 : 109,434.09 = 30,828.77 : x
  2. Step 2: Convert to fraction form
    72,948.29/109,434.09 = 30,828.77/x
  3. Step 3: Cross multiply
    72,948.29x = 109,434.09 × 30,828.77
  4. Step 4: Simplify right side
    72,948.29x = 3,373,717,843.60
  5. Step 5: Solve for x
    x = 3,373,717,843.60/72,948.29
  6. Step 6: Final answer
    x = 46,248.08

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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.