Home / 91,031.04-125,602.56-52,784.64

Finding the Fourth Proportional to 91,031.04, 125,602.56 and 52,784.64

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Solution

The fourth proportional to 91,031.04, 125,602.56 and 52,784.64 is: 72,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,031.04 : 125,602.56 = 52,784.64 : x
  2. Step 2: Convert to fraction form
    91,031.04/125,602.56 = 52,784.64/x
  3. Step 3: Cross multiply
    91,031.04x = 125,602.56 × 52,784.64
  4. Step 4: Simplify right side
    91,031.04x = 6,629,885,912.68
  5. Step 5: Solve for x
    x = 6,629,885,912.68/91,031.04
  6. Step 6: Final answer
    x = 72,831.05

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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.