Home / 84,071.12-125,815.68-52,036.83

Finding the Fourth Proportional to 84,071.12, 125,815.68 and 52,036.83

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Solution

The fourth proportional to 84,071.12, 125,815.68 and 52,036.83 is: 77,875.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,071.12 : 125,815.68 = 52,036.83 : x
  2. Step 2: Convert to fraction form
    84,071.12/125,815.68 = 52,036.83/x
  3. Step 3: Cross multiply
    84,071.12x = 125,815.68 × 52,036.83
  4. Step 4: Simplify right side
    84,071.12x = 6,547,049,151.49
  5. Step 5: Solve for x
    x = 6,547,049,151.49/84,071.12
  6. Step 6: Final answer
    x = 77,875.13

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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.