Home / 76,299.84-105,250.32-61,209.36

Finding the Fourth Proportional to 76,299.84, 105,250.32 and 61,209.36

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Solution

The fourth proportional to 76,299.84, 105,250.32 and 61,209.36 is: 84,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,299.84 : 105,250.32 = 61,209.36 : x
  2. Step 2: Convert to fraction form
    76,299.84/105,250.32 = 61,209.36/x
  3. Step 3: Cross multiply
    76,299.84x = 105,250.32 × 61,209.36
  4. Step 4: Simplify right side
    76,299.84x = 6,442,304,727.00
  5. Step 5: Solve for x
    x = 6,442,304,727.00/76,299.84
  6. Step 6: Final answer
    x = 84,434.05

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1.5x scale

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.