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Finding the Fourth Proportional to 75,888.48, 113,834.40 and 19,730.80

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Solution

The fourth proportional to 75,888.48, 113,834.40 and 19,730.80 is: 29,596.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,888.48 : 113,834.40 = 19,730.80 : x
  2. Step 2: Convert to fraction form
    75,888.48/113,834.40 = 19,730.80/x
  3. Step 3: Cross multiply
    75,888.48x = 113,834.40 × 19,730.80
  4. Step 4: Simplify right side
    75,888.48x = 2,246,043,779.52
  5. Step 5: Solve for x
    x = 2,246,043,779.52/75,888.48
  6. Step 6: Final answer
    x = 29,596.64

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1.5x scale

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.