Home / 76,390.04-105,440.73-49,534.22

Finding the Fourth Proportional to 76,390.04, 105,440.73 and 49,534.22

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Solution

The fourth proportional to 76,390.04, 105,440.73 and 49,534.22 is: 68,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,390.04 : 105,440.73 = 49,534.22 : x
  2. Step 2: Convert to fraction form
    76,390.04/105,440.73 = 49,534.22/x
  3. Step 3: Cross multiply
    76,390.04x = 105,440.73 × 49,534.22
  4. Step 4: Simplify right side
    76,390.04x = 5,222,924,316.78
  5. Step 5: Solve for x
    x = 5,222,924,316.78/76,390.04
  6. Step 6: Final answer
    x = 68,371.80

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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.