Home / 92,928.90-128,242.05-50,487.48

Finding the Fourth Proportional to 92,928.90, 128,242.05 and 50,487.48

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Solution

The fourth proportional to 92,928.90, 128,242.05 and 50,487.48 is: 69,672.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,928.90 : 128,242.05 = 50,487.48 : x
  2. Step 2: Convert to fraction form
    92,928.90/128,242.05 = 50,487.48/x
  3. Step 3: Cross multiply
    92,928.90x = 128,242.05 × 50,487.48
  4. Step 4: Simplify right side
    92,928.90x = 6,474,617,934.53
  5. Step 5: Solve for x
    x = 6,474,617,934.53/92,928.90
  6. Step 6: Final answer
    x = 69,672.81

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1.5x scale

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.