Home / 92,979.60-128,312.76-50,538.11

Finding the Fourth Proportional to 92,979.60, 128,312.76 and 50,538.11

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Solution

The fourth proportional to 92,979.60, 128,312.76 and 50,538.11 is: 69,743.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,979.60 : 128,312.76 = 50,538.11 : x
  2. Step 2: Convert to fraction form
    92,979.60/128,312.76 = 50,538.11/x
  3. Step 3: Cross multiply
    92,979.60x = 128,312.76 × 50,538.11
  4. Step 4: Simplify right side
    92,979.60x = 6,484,683,737.72
  5. Step 5: Solve for x
    x = 6,484,683,737.72/92,979.60
  6. Step 6: Final answer
    x = 69,743.08

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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.