Home / 99,947.51-137,927.80-54,626.03

Finding the Fourth Proportional to 99,947.51, 137,927.80 and 54,626.03

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Solution

The fourth proportional to 99,947.51, 137,927.80 and 54,626.03 is: 75,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,947.51 : 137,927.80 = 54,626.03 : x
  2. Step 2: Convert to fraction form
    99,947.51/137,927.80 = 54,626.03/x
  3. Step 3: Cross multiply
    99,947.51x = 137,927.80 × 54,626.03
  4. Step 4: Simplify right side
    99,947.51x = 7,534,448,140.63
  5. Step 5: Solve for x
    x = 7,534,448,140.63/99,947.51
  6. Step 6: Final answer
    x = 75,384.05

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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.