Home / 77,295.36-106,667.36-42,842.28

Finding the Fourth Proportional to 77,295.36, 106,667.36 and 42,842.28

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Solution

The fourth proportional to 77,295.36, 106,667.36 and 42,842.28 is: 59,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,295.36 : 106,667.36 = 42,842.28 : x
  2. Step 2: Convert to fraction form
    77,295.36/106,667.36 = 42,842.28/x
  3. Step 3: Cross multiply
    77,295.36x = 106,667.36 × 42,842.28
  4. Step 4: Simplify right side
    77,295.36x = 4,569,872,903.98
  5. Step 5: Solve for x
    x = 4,569,872,903.98/77,295.36
  6. Step 6: Final answer
    x = 59,122.22

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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.