Home / 76,181.63-105,095.75-49,332.78

Finding the Fourth Proportional to 76,181.63, 105,095.75 and 49,332.78

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Solution

The fourth proportional to 76,181.63, 105,095.75 and 49,332.78 is: 68,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,181.63 : 105,095.75 = 49,332.78 : x
  2. Step 2: Convert to fraction form
    76,181.63/105,095.75 = 49,332.78/x
  3. Step 3: Cross multiply
    76,181.63x = 105,095.75 × 49,332.78
  4. Step 4: Simplify right side
    76,181.63x = 5,184,666,126.64
  5. Step 5: Solve for x
    x = 5,184,666,126.64/76,181.63
  6. Step 6: Final answer
    x = 68,056.65

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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.