Home / 55,572.15-76,688.06-31,698.32

Finding the Fourth Proportional to 55,572.15, 76,688.06 and 31,698.32

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Solution

The fourth proportional to 55,572.15, 76,688.06 and 31,698.32 is: 43,742.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,572.15 : 76,688.06 = 31,698.32 : x
  2. Step 2: Convert to fraction form
    55,572.15/76,688.06 = 31,698.32/x
  3. Step 3: Cross multiply
    55,572.15x = 76,688.06 × 31,698.32
  4. Step 4: Simplify right side
    55,572.15x = 2,430,882,124.13
  5. Step 5: Solve for x
    x = 2,430,882,124.13/55,572.15
  6. Step 6: Final answer
    x = 43,742.81

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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.