Home / 80,510.63-111,108.14-44,700.64

Finding the Fourth Proportional to 80,510.63, 111,108.14 and 44,700.64

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Solution

The fourth proportional to 80,510.63, 111,108.14 and 44,700.64 is: 61,688.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510.63 : 111,108.14 = 44,700.64 : x
  2. Step 2: Convert to fraction form
    80,510.63/111,108.14 = 44,700.64/x
  3. Step 3: Cross multiply
    80,510.63x = 111,108.14 × 44,700.64
  4. Step 4: Simplify right side
    80,510.63x = 4,966,604,967.21
  5. Step 5: Solve for x
    x = 4,966,604,967.21/80,510.63
  6. Step 6: Final answer
    x = 61,688.81

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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.