Home / 52,780.77-78,774.75-45,633.39

Finding the Fourth Proportional to 52,780.77, 78,774.75 and 45,633.39

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Solution

The fourth proportional to 52,780.77, 78,774.75 and 45,633.39 is: 68,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,780.77 : 78,774.75 = 45,633.39 : x
  2. Step 2: Convert to fraction form
    52,780.77/78,774.75 = 45,633.39/x
  3. Step 3: Cross multiply
    52,780.77x = 78,774.75 × 45,633.39
  4. Step 4: Simplify right side
    52,780.77x = 3,594,758,888.90
  5. Step 5: Solve for x
    x = 3,594,758,888.90/52,780.77
  6. Step 6: Final answer
    x = 68,107.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.