Home / 81,436.36-112,332.50-53,840.92

Finding the Fourth Proportional to 81,436.36, 112,332.50 and 53,840.92

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Solution

The fourth proportional to 81,436.36, 112,332.50 and 53,840.92 is: 74,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,436.36 : 112,332.50 = 53,840.92 : x
  2. Step 2: Convert to fraction form
    81,436.36/112,332.50 = 53,840.92/x
  3. Step 3: Cross multiply
    81,436.36x = 112,332.50 × 53,840.92
  4. Step 4: Simplify right side
    81,436.36x = 6,048,085,145.90
  5. Step 5: Solve for x
    x = 6,048,085,145.90/81,436.36
  6. Step 6: Final answer
    x = 74,267.63

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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.