Home / 88,353.40-121,946.70-58,141.48

Finding the Fourth Proportional to 88,353.40, 121,946.70 and 58,141.48

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Solution

The fourth proportional to 88,353.40, 121,946.70 and 58,141.48 is: 80,247.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,353.40 : 121,946.70 = 58,141.48 : x
  2. Step 2: Convert to fraction form
    88,353.40/121,946.70 = 58,141.48/x
  3. Step 3: Cross multiply
    88,353.40x = 121,946.70 × 58,141.48
  4. Step 4: Simplify right side
    88,353.40x = 7,090,161,619.12
  5. Step 5: Solve for x
    x = 7,090,161,619.12/88,353.40
  6. Step 6: Final answer
    x = 80,247.75

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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.