Home / 88,691.19-133,031.93-53,621.43

Finding the Fourth Proportional to 88,691.19, 133,031.93 and 53,621.43

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Solution

The fourth proportional to 88,691.19, 133,031.93 and 53,621.43 is: 80,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.19 : 133,031.93 = 53,621.43 : x
  2. Step 2: Convert to fraction form
    88,691.19/133,031.93 = 53,621.43/x
  3. Step 3: Cross multiply
    88,691.19x = 133,031.93 × 53,621.43
  4. Step 4: Simplify right side
    88,691.19x = 7,133,362,054.15
  5. Step 5: Solve for x
    x = 7,133,362,054.15/88,691.19
  6. Step 6: Final answer
    x = 80,429.21

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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.