Home / 80,918.93-121,441.95-56,133.39

Finding the Fourth Proportional to 80,918.93, 121,441.95 and 56,133.39

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Solution

The fourth proportional to 80,918.93, 121,441.95 and 56,133.39 is: 84,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,918.93 : 121,441.95 = 56,133.39 : x
  2. Step 2: Convert to fraction form
    80,918.93/121,441.95 = 56,133.39/x
  3. Step 3: Cross multiply
    80,918.93x = 121,441.95 × 56,133.39
  4. Step 4: Simplify right side
    80,918.93x = 6,816,948,341.71
  5. Step 5: Solve for x
    x = 6,816,948,341.71/80,918.93
  6. Step 6: Final answer
    x = 84,244.18

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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.