Home / 52,930.10-79,426.20-21,355.40

Finding the Fourth Proportional to 52,930.10, 79,426.20 and 21,355.40

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Solution

The fourth proportional to 52,930.10, 79,426.20 and 21,355.40 is: 32,045.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,930.10 : 79,426.20 = 21,355.40 : x
  2. Step 2: Convert to fraction form
    52,930.10/79,426.20 = 21,355.40/x
  3. Step 3: Cross multiply
    52,930.10x = 79,426.20 × 21,355.40
  4. Step 4: Simplify right side
    52,930.10x = 1,696,178,271.48
  5. Step 5: Solve for x
    x = 1,696,178,271.48/52,930.10
  6. Step 6: Final answer
    x = 32,045.63

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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.