Home / 83,628.61-115,446.75-56,080.16

Finding the Fourth Proportional to 83,628.61, 115,446.75 and 56,080.16

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Solution

The fourth proportional to 83,628.61, 115,446.75 and 56,080.16 is: 77,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,628.61 : 115,446.75 = 56,080.16 : x
  2. Step 2: Convert to fraction form
    83,628.61/115,446.75 = 56,080.16/x
  3. Step 3: Cross multiply
    83,628.61x = 115,446.75 × 56,080.16
  4. Step 4: Simplify right side
    83,628.61x = 6,474,271,856.87
  5. Step 5: Solve for x
    x = 6,474,271,856.87/83,628.61
  6. Step 6: Final answer
    x = 77,416.95

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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.