Home / 83,800.04-115,530.86-56,895.84

Finding the Fourth Proportional to 83,800.04, 115,530.86 and 56,895.84

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Solution

The fourth proportional to 83,800.04, 115,530.86 and 56,895.84 is: 78,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,800.04 : 115,530.86 = 56,895.84 : x
  2. Step 2: Convert to fraction form
    83,800.04/115,530.86 = 56,895.84/x
  3. Step 3: Cross multiply
    83,800.04x = 115,530.86 × 56,895.84
  4. Step 4: Simplify right side
    83,800.04x = 6,573,225,325.62
  5. Step 5: Solve for x
    x = 6,573,225,325.62/83,800.04
  6. Step 6: Final answer
    x = 78,439.41

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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.