Home / 76,481.02-105,545.19-42,948.22

Finding the Fourth Proportional to 76,481.02, 105,545.19 and 42,948.22

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Solution

The fourth proportional to 76,481.02, 105,545.19 and 42,948.22 is: 59,269.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,481.02 : 105,545.19 = 42,948.22 : x
  2. Step 2: Convert to fraction form
    76,481.02/105,545.19 = 42,948.22/x
  3. Step 3: Cross multiply
    76,481.02x = 105,545.19 × 42,948.22
  4. Step 4: Simplify right side
    76,481.02x = 4,532,978,040.06
  5. Step 5: Solve for x
    x = 4,532,978,040.06/76,481.02
  6. Step 6: Final answer
    x = 59,269.32

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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.