Home / 81,585.64-112,559.58-51,373.60

Finding the Fourth Proportional to 81,585.64, 112,559.58 and 51,373.60

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Solution

The fourth proportional to 81,585.64, 112,559.58 and 51,373.60 is: 70,877.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,585.64 : 112,559.58 = 51,373.60 : x
  2. Step 2: Convert to fraction form
    81,585.64/112,559.58 = 51,373.60/x
  3. Step 3: Cross multiply
    81,585.64x = 112,559.58 × 51,373.60
  4. Step 4: Simplify right side
    81,585.64x = 5,782,590,839.09
  5. Step 5: Solve for x
    x = 5,782,590,839.09/81,585.64
  6. Step 6: Final answer
    x = 70,877.56

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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.