Home / 93,640.05-129,208.77-53,355.51

Finding the Fourth Proportional to 93,640.05, 129,208.77 and 53,355.51

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Solution

The fourth proportional to 93,640.05, 129,208.77 and 53,355.51 is: 73,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,640.05 : 129,208.77 = 53,355.51 : x
  2. Step 2: Convert to fraction form
    93,640.05/129,208.77 = 53,355.51/x
  3. Step 3: Cross multiply
    93,640.05x = 129,208.77 × 53,355.51
  4. Step 4: Simplify right side
    93,640.05x = 6,893,999,819.82
  5. Step 5: Solve for x
    x = 6,893,999,819.82/93,640.05
  6. Step 6: Final answer
    x = 73,622.34

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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.