Home / 76,587.10-105,688.35-41,660.84

Finding the Fourth Proportional to 76,587.10, 105,688.35 and 41,660.84

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Solution

The fourth proportional to 76,587.10, 105,688.35 and 41,660.84 is: 57,490.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,587.10 : 105,688.35 = 41,660.84 : x
  2. Step 2: Convert to fraction form
    76,587.10/105,688.35 = 41,660.84/x
  3. Step 3: Cross multiply
    76,587.10x = 105,688.35 × 41,660.84
  4. Step 4: Simplify right side
    76,587.10x = 4,403,065,703.43
  5. Step 5: Solve for x
    x = 4,403,065,703.43/76,587.10
  6. Step 6: Final answer
    x = 57,490.96

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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.