Home / 215,411.76-323,113.05-57,640.23

Finding the Fourth Proportional to 215,411.76, 323,113.05 and 57,640.23

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Solution

The fourth proportional to 215,411.76, 323,113.05 and 57,640.23 is: 86,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,411.76 : 323,113.05 = 57,640.23 : x
  2. Step 2: Convert to fraction form
    215,411.76/323,113.05 = 57,640.23/x
  3. Step 3: Cross multiply
    215,411.76x = 323,113.05 × 57,640.23
  4. Step 4: Simplify right side
    215,411.76x = 18,624,310,518.00
  5. Step 5: Solve for x
    x = 18,624,310,518.00/215,411.76
  6. Step 6: Final answer
    x = 86,459.12

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1.5x scale

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.