Home / 52,821.70-72,875.79-31,307.09

Finding the Fourth Proportional to 52,821.70, 72,875.79 and 31,307.09

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Solution

The fourth proportional to 52,821.70, 72,875.79 and 31,307.09 is: 43,193.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,821.70 : 72,875.79 = 31,307.09 : x
  2. Step 2: Convert to fraction form
    52,821.70/72,875.79 = 31,307.09/x
  3. Step 3: Cross multiply
    52,821.70x = 72,875.79 × 31,307.09
  4. Step 4: Simplify right side
    52,821.70x = 2,281,528,916.35
  5. Step 5: Solve for x
    x = 2,281,528,916.35/52,821.70
  6. Step 6: Final answer
    x = 43,193.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.