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Finding the Fourth Proportional to 80,031.51, 110,124.77 and 77,596.65

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Solution

The fourth proportional to 80,031.51, 110,124.77 and 77,596.65 is: 106,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,031.51 : 110,124.77 = 77,596.65 : x
  2. Step 2: Convert to fraction form
    80,031.51/110,124.77 = 77,596.65/x
  3. Step 3: Cross multiply
    80,031.51x = 110,124.77 × 77,596.65
  4. Step 4: Simplify right side
    80,031.51x = 8,545,312,846.04
  5. Step 5: Solve for x
    x = 8,545,312,846.04/80,031.51
  6. Step 6: Final answer
    x = 106,774.35

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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.