Home / 78,658.32-108,539.13-44,666.55

Finding the Fourth Proportional to 78,658.32, 108,539.13 and 44,666.55

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Solution

The fourth proportional to 78,658.32, 108,539.13 and 44,666.55 is: 61,634.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,658.32 : 108,539.13 = 44,666.55 : x
  2. Step 2: Convert to fraction form
    78,658.32/108,539.13 = 44,666.55/x
  3. Step 3: Cross multiply
    78,658.32x = 108,539.13 × 44,666.55
  4. Step 4: Simplify right side
    78,658.32x = 4,848,068,477.10
  5. Step 5: Solve for x
    x = 4,848,068,477.10/78,658.32
  6. Step 6: Final answer
    x = 61,634.53

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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.