Home / 99,705.71-137,594.30-54,384.66

Finding the Fourth Proportional to 99,705.71, 137,594.30 and 54,384.66

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Solution

The fourth proportional to 99,705.71, 137,594.30 and 54,384.66 is: 75,051.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,705.71 : 137,594.30 = 54,384.66 : x
  2. Step 2: Convert to fraction form
    99,705.71/137,594.30 = 54,384.66/x
  3. Step 3: Cross multiply
    99,705.71x = 137,594.30 × 54,384.66
  4. Step 4: Simplify right side
    99,705.71x = 7,483,019,771.37
  5. Step 5: Solve for x
    x = 7,483,019,771.37/99,705.71
  6. Step 6: Final answer
    x = 75,051.07

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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.