Home / 81,329.76-112,237.08-45,519.48

Finding the Fourth Proportional to 81,329.76, 112,237.08 and 45,519.48

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Solution

The fourth proportional to 81,329.76, 112,237.08 and 45,519.48 is: 62,818.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,329.76 : 112,237.08 = 45,519.48 : x
  2. Step 2: Convert to fraction form
    81,329.76/112,237.08 = 45,519.48/x
  3. Step 3: Cross multiply
    81,329.76x = 112,237.08 × 45,519.48
  4. Step 4: Simplify right side
    81,329.76x = 5,108,973,518.32
  5. Step 5: Solve for x
    x = 5,108,973,518.32/81,329.76
  6. Step 6: Final answer
    x = 62,818.01

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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.