Home / 93,319.87-128,781.33-50,878.39

Finding the Fourth Proportional to 93,319.87, 128,781.33 and 50,878.39

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Solution

The fourth proportional to 93,319.87, 128,781.33 and 50,878.39 is: 70,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,319.87 : 128,781.33 = 50,878.39 : x
  2. Step 2: Convert to fraction form
    93,319.87/128,781.33 = 50,878.39/x
  3. Step 3: Cross multiply
    93,319.87x = 128,781.33 × 50,878.39
  4. Step 4: Simplify right side
    93,319.87x = 6,552,186,732.46
  5. Step 5: Solve for x
    x = 6,552,186,732.46/93,319.87
  6. Step 6: Final answer
    x = 70,212.13

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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.