Home / 80,886.72-111,622.11-45,075.93

Finding the Fourth Proportional to 80,886.72, 111,622.11 and 45,075.93

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Solution

The fourth proportional to 80,886.72, 111,622.11 and 45,075.93 is: 62,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,886.72 : 111,622.11 = 45,075.93 : x
  2. Step 2: Convert to fraction form
    80,886.72/111,622.11 = 45,075.93/x
  3. Step 3: Cross multiply
    80,886.72x = 111,622.11 × 45,075.93
  4. Step 4: Simplify right side
    80,886.72x = 5,031,470,416.81
  5. Step 5: Solve for x
    x = 5,031,470,416.81/80,886.72
  6. Step 6: Final answer
    x = 62,203.91

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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.