Home / 83,865.04-115,705.44-56,960.92

Finding the Fourth Proportional to 83,865.04, 115,705.44 and 56,960.92

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Solution

The fourth proportional to 83,865.04, 115,705.44 and 56,960.92 is: 78,586.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,865.04 : 115,705.44 = 56,960.92 : x
  2. Step 2: Convert to fraction form
    83,865.04/115,705.44 = 56,960.92/x
  3. Step 3: Cross multiply
    83,865.04x = 115,705.44 × 56,960.92
  4. Step 4: Simplify right side
    83,865.04x = 6,590,688,311.40
  5. Step 5: Solve for x
    x = 6,590,688,311.40/83,865.04
  6. Step 6: Final answer
    x = 78,586.84

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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.