Home / 76,440.61-105,538.01-49,659.45

Finding the Fourth Proportional to 76,440.61, 105,538.01 and 49,659.45

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Solution

The fourth proportional to 76,440.61, 105,538.01 and 49,659.45 is: 68,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,440.61 : 105,538.01 = 49,659.45 : x
  2. Step 2: Convert to fraction form
    76,440.61/105,538.01 = 49,659.45/x
  3. Step 3: Cross multiply
    76,440.61x = 105,538.01 × 49,659.45
  4. Step 4: Simplify right side
    76,440.61x = 5,240,958,886.63
  5. Step 5: Solve for x
    x = 5,240,958,886.63/76,440.61
  6. Step 6: Final answer
    x = 68,562.49

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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.