Home / 96,780.30-145,111.47-43,461.91

Finding the Fourth Proportional to 96,780.30, 145,111.47 and 43,461.91

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Solution

The fourth proportional to 96,780.30, 145,111.47 and 43,461.91 is: 65,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,780.30 : 145,111.47 = 43,461.91 : x
  2. Step 2: Convert to fraction form
    96,780.30/145,111.47 = 43,461.91/x
  3. Step 3: Cross multiply
    96,780.30x = 145,111.47 × 43,461.91
  4. Step 4: Simplify right side
    96,780.30x = 6,306,821,667.51
  5. Step 5: Solve for x
    x = 6,306,821,667.51/96,780.30
  6. Step 6: Final answer
    x = 65,166.38

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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.