Home / 80,818.16-111,521.08-45,011.51

Finding the Fourth Proportional to 80,818.16, 111,521.08 and 45,011.51

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Solution

The fourth proportional to 80,818.16, 111,521.08 and 45,011.51 is: 62,111.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,818.16 : 111,521.08 = 45,011.51 : x
  2. Step 2: Convert to fraction form
    80,818.16/111,521.08 = 45,011.51/x
  3. Step 3: Cross multiply
    80,818.16x = 111,521.08 × 45,011.51
  4. Step 4: Simplify right side
    80,818.16x = 5,019,732,207.63
  5. Step 5: Solve for x
    x = 5,019,732,207.63/80,818.16
  6. Step 6: Final answer
    x = 62,111.44

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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.