Home / 93,420.39-128,924.01-53,141.25

Finding the Fourth Proportional to 93,420.39, 128,924.01 and 53,141.25

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Solution

The fourth proportional to 93,420.39, 128,924.01 and 53,141.25 is: 73,337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,420.39 : 128,924.01 = 53,141.25 : x
  2. Step 2: Convert to fraction form
    93,420.39/128,924.01 = 53,141.25/x
  3. Step 3: Cross multiply
    93,420.39x = 128,924.01 × 53,141.25
  4. Step 4: Simplify right side
    93,420.39x = 6,851,183,046.41
  5. Step 5: Solve for x
    x = 6,851,183,046.41/93,420.39
  6. Step 6: Final answer
    x = 73,337.13

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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.