Home / 55,166.32-76,137.40-30,969.84

Finding the Fourth Proportional to 55,166.32, 76,137.40 and 30,969.84

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Solution

The fourth proportional to 55,166.32, 76,137.40 and 30,969.84 is: 42,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,166.32 : 76,137.40 = 30,969.84 : x
  2. Step 2: Convert to fraction form
    55,166.32/76,137.40 = 30,969.84/x
  3. Step 3: Cross multiply
    55,166.32x = 76,137.40 × 30,969.84
  4. Step 4: Simplify right side
    55,166.32x = 2,357,963,096.02
  5. Step 5: Solve for x
    x = 2,357,963,096.02/55,166.32
  6. Step 6: Final answer
    x = 42,742.80

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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.