Home / 61,020.16-84,206.64-34,162.72

Finding the Fourth Proportional to 61,020.16, 84,206.64 and 34,162.72

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Solution

The fourth proportional to 61,020.16, 84,206.64 and 34,162.72 is: 47,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,020.16 : 84,206.64 = 34,162.72 : x
  2. Step 2: Convert to fraction form
    61,020.16/84,206.64 = 34,162.72/x
  3. Step 3: Cross multiply
    61,020.16x = 84,206.64 × 34,162.72
  4. Step 4: Simplify right side
    61,020.16x = 2,876,727,864.46
  5. Step 5: Solve for x
    x = 2,876,727,864.46/61,020.16
  6. Step 6: Final answer
    x = 47,143.89

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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.