Home / 76,181.60-105,095.70-49,332.76

Finding the Fourth Proportional to 76,181.60, 105,095.70 and 49,332.76

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Solution

The fourth proportional to 76,181.60, 105,095.70 and 49,332.76 is: 68,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,181.60 : 105,095.70 = 49,332.76 : x
  2. Step 2: Convert to fraction form
    76,181.60/105,095.70 = 49,332.76/x
  3. Step 3: Cross multiply
    76,181.60x = 105,095.70 × 49,332.76
  4. Step 4: Simplify right side
    76,181.60x = 5,184,660,945.13
  5. Step 5: Solve for x
    x = 5,184,660,945.13/76,181.60
  6. Step 6: Final answer
    x = 68,056.60

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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.