Home / 92,880.47-128,171.63-50,438.09

Finding the Fourth Proportional to 92,880.47, 128,171.63 and 50,438.09

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Solution

The fourth proportional to 92,880.47, 128,171.63 and 50,438.09 is: 69,602.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,880.47 : 128,171.63 = 50,438.09 : x
  2. Step 2: Convert to fraction form
    92,880.47/128,171.63 = 50,438.09/x
  3. Step 3: Cross multiply
    92,880.47x = 128,171.63 × 50,438.09
  4. Step 4: Simplify right side
    92,880.47x = 6,464,731,957.20
  5. Step 5: Solve for x
    x = 6,464,731,957.20/92,880.47
  6. Step 6: Final answer
    x = 69,602.71

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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.