Home / 92,880.18-128,173.50-50,439

Finding the Fourth Proportional to 92,880.18, 128,173.50 and 50,439

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Solution

The fourth proportional to 92,880.18, 128,173.50 and 50,439 is: 69,605.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,880.18 : 128,173.50 = 50,439 : x
  2. Step 2: Convert to fraction form
    92,880.18/128,173.50 = 50,439/x
  3. Step 3: Cross multiply
    92,880.18x = 128,173.50 × 50,439
  4. Step 4: Simplify right side
    92,880.18x = 6,464,943,166.50
  5. Step 5: Solve for x
    x = 6,464,943,166.50/92,880.18
  6. Step 6: Final answer
    x = 69,605.20

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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.