Home / 76,420.03-105,386.35-49,168.30

Finding the Fourth Proportional to 76,420.03, 105,386.35 and 49,168.30

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Solution

The fourth proportional to 76,420.03, 105,386.35 and 49,168.30 is: 67,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,420.03 : 105,386.35 = 49,168.30 : x
  2. Step 2: Convert to fraction form
    76,420.03/105,386.35 = 49,168.30/x
  3. Step 3: Cross multiply
    76,420.03x = 105,386.35 × 49,168.30
  4. Step 4: Simplify right side
    76,420.03x = 5,181,667,250.09
  5. Step 5: Solve for x
    x = 5,181,667,250.09/76,420.03
  6. Step 6: Final answer
    x = 67,805.10

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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.