Home / 78,814.43-118,275.20-32,075.81

Finding the Fourth Proportional to 78,814.43, 118,275.20 and 32,075.81

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Solution

The fourth proportional to 78,814.43, 118,275.20 and 32,075.81 is: 48,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,814.43 : 118,275.20 = 32,075.81 : x
  2. Step 2: Convert to fraction form
    78,814.43/118,275.20 = 32,075.81/x
  3. Step 3: Cross multiply
    78,814.43x = 118,275.20 × 32,075.81
  4. Step 4: Simplify right side
    78,814.43x = 3,793,772,682.53
  5. Step 5: Solve for x
    x = 3,793,772,682.53/78,814.43
  6. Step 6: Final answer
    x = 48,135.51

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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.