Home / 99,707.61-137,596.93-54,386.56

Finding the Fourth Proportional to 99,707.61, 137,596.93 and 54,386.56

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Solution

The fourth proportional to 99,707.61, 137,596.93 and 54,386.56 is: 75,053.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,707.61 : 137,596.93 = 54,386.56 : x
  2. Step 2: Convert to fraction form
    99,707.61/137,596.93 = 54,386.56/x
  3. Step 3: Cross multiply
    99,707.61x = 137,596.93 × 54,386.56
  4. Step 4: Simplify right side
    99,707.61x = 7,483,423,725.29
  5. Step 5: Solve for x
    x = 7,483,423,725.29/99,707.61
  6. Step 6: Final answer
    x = 75,053.69

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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.