Home / 55,776.05-76,856.51-51,838.37

Finding the Fourth Proportional to 55,776.05, 76,856.51 and 51,838.37

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Solution

The fourth proportional to 55,776.05, 76,856.51 and 51,838.37 is: 71,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,776.05 : 76,856.51 = 51,838.37 : x
  2. Step 2: Convert to fraction form
    55,776.05/76,856.51 = 51,838.37/x
  3. Step 3: Cross multiply
    55,776.05x = 76,856.51 × 51,838.37
  4. Step 4: Simplify right side
    55,776.05x = 3,984,116,202.29
  5. Step 5: Solve for x
    x = 3,984,116,202.29/55,776.05
  6. Step 6: Final answer
    x = 71,430.59

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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.