Home / 52,158.84-78,043.14-31,021.80

Finding the Fourth Proportional to 52,158.84, 78,043.14 and 31,021.80

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Solution

The fourth proportional to 52,158.84, 78,043.14 and 31,021.80 is: 46,416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,158.84 : 78,043.14 = 31,021.80 : x
  2. Step 2: Convert to fraction form
    52,158.84/78,043.14 = 31,021.80/x
  3. Step 3: Cross multiply
    52,158.84x = 78,043.14 × 31,021.80
  4. Step 4: Simplify right side
    52,158.84x = 2,421,038,680.45
  5. Step 5: Solve for x
    x = 2,421,038,680.45/52,158.84
  6. Step 6: Final answer
    x = 46,416.65

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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.