Home / 80,510.12-111,106.80-44,700.68

Finding the Fourth Proportional to 80,510.12, 111,106.80 and 44,700.68

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Solution

The fourth proportional to 80,510.12, 111,106.80 and 44,700.68 is: 61,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510.12 : 111,106.80 = 44,700.68 : x
  2. Step 2: Convert to fraction form
    80,510.12/111,106.80 = 44,700.68/x
  3. Step 3: Cross multiply
    80,510.12x = 111,106.80 × 44,700.68
  4. Step 4: Simplify right side
    80,510.12x = 4,966,549,512.62
  5. Step 5: Solve for x
    x = 4,966,549,512.62/80,510.12
  6. Step 6: Final answer
    x = 61,688.51

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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.