Home / 90,891.72-125,437.21-52,661.14

Finding the Fourth Proportional to 90,891.72, 125,437.21 and 52,661.14

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Solution

The fourth proportional to 90,891.72, 125,437.21 and 52,661.14 is: 72,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,891.72 : 125,437.21 = 52,661.14 : x
  2. Step 2: Convert to fraction form
    90,891.72/125,437.21 = 52,661.14/x
  3. Step 3: Cross multiply
    90,891.72x = 125,437.21 × 52,661.14
  4. Step 4: Simplify right side
    90,891.72x = 6,605,666,031.77
  5. Step 5: Solve for x
    x = 6,605,666,031.77/90,891.72
  6. Step 6: Final answer
    x = 72,676.21

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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.