Home / 81,050.82-121,574.67-36,646.55

Finding the Fourth Proportional to 81,050.82, 121,574.67 and 36,646.55

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Solution

The fourth proportional to 81,050.82, 121,574.67 and 36,646.55 is: 54,969.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,050.82 : 121,574.67 = 36,646.55 : x
  2. Step 2: Convert to fraction form
    81,050.82/121,574.67 = 36,646.55/x
  3. Step 3: Cross multiply
    81,050.82x = 121,574.67 × 36,646.55
  4. Step 4: Simplify right side
    81,050.82x = 4,455,292,222.89
  5. Step 5: Solve for x
    x = 4,455,292,222.89/81,050.82
  6. Step 6: Final answer
    x = 54,969.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.