Home / 93,415.74-128,916.81-50,976.60

Finding the Fourth Proportional to 93,415.74, 128,916.81 and 50,976.60

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Solution

The fourth proportional to 93,415.74, 128,916.81 and 50,976.60 is: 70,349.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,415.74 : 128,916.81 = 50,976.60 : x
  2. Step 2: Convert to fraction form
    93,415.74/128,916.81 = 50,976.60/x
  3. Step 3: Cross multiply
    93,415.74x = 128,916.81 × 50,976.60
  4. Step 4: Simplify right side
    93,415.74x = 6,571,740,656.65
  5. Step 5: Solve for x
    x = 6,571,740,656.65/93,415.74
  6. Step 6: Final answer
    x = 70,349.39

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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.