Home / 78,947.40-118,226.70-37,345.80

Finding the Fourth Proportional to 78,947.40, 118,226.70 and 37,345.80

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Solution

The fourth proportional to 78,947.40, 118,226.70 and 37,345.80 is: 55,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,947.40 : 118,226.70 = 37,345.80 : x
  2. Step 2: Convert to fraction form
    78,947.40/118,226.70 = 37,345.80/x
  3. Step 3: Cross multiply
    78,947.40x = 118,226.70 × 37,345.80
  4. Step 4: Simplify right side
    78,947.40x = 4,415,270,692.86
  5. Step 5: Solve for x
    x = 4,415,270,692.86/78,947.40
  6. Step 6: Final answer
    x = 55,926.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.