Home / 88,431.52-122,031.67-48,145.43

Finding the Fourth Proportional to 88,431.52, 122,031.67 and 48,145.43

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Solution

The fourth proportional to 88,431.52, 122,031.67 and 48,145.43 is: 66,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,431.52 : 122,031.67 = 48,145.43 : x
  2. Step 2: Convert to fraction form
    88,431.52/122,031.67 = 48,145.43/x
  3. Step 3: Cross multiply
    88,431.52x = 122,031.67 × 48,145.43
  4. Step 4: Simplify right side
    88,431.52x = 5,875,266,615.61
  5. Step 5: Solve for x
    x = 5,875,266,615.61/88,431.52
  6. Step 6: Final answer
    x = 66,438.61

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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.