Home / 76,020.47-104,905.15-42,026.79

Finding the Fourth Proportional to 76,020.47, 104,905.15 and 42,026.79

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Solution

The fourth proportional to 76,020.47, 104,905.15 and 42,026.79 is: 57,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,020.47 : 104,905.15 = 42,026.79 : x
  2. Step 2: Convert to fraction form
    76,020.47/104,905.15 = 42,026.79/x
  3. Step 3: Cross multiply
    76,020.47x = 104,905.15 × 42,026.79
  4. Step 4: Simplify right side
    76,020.47x = 4,408,826,603.90
  5. Step 5: Solve for x
    x = 4,408,826,603.90/76,020.47
  6. Step 6: Final answer
    x = 57,995.26

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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.