Home / 55,129.76-76,121.93-42,362.83

Finding the Fourth Proportional to 55,129.76, 76,121.93 and 42,362.83

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Solution

The fourth proportional to 55,129.76, 76,121.93 and 42,362.83 is: 58,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.76 : 76,121.93 = 42,362.83 : x
  2. Step 2: Convert to fraction form
    55,129.76/76,121.93 = 42,362.83/x
  3. Step 3: Cross multiply
    55,129.76x = 76,121.93 × 42,362.83
  4. Step 4: Simplify right side
    55,129.76x = 3,224,740,342.63
  5. Step 5: Solve for x
    x = 3,224,740,342.63/55,129.76
  6. Step 6: Final answer
    x = 58,493.64

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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.