Home / 93,621.09-129,221.14-57,790.51

Finding the Fourth Proportional to 93,621.09, 129,221.14 and 57,790.51

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Solution

The fourth proportional to 93,621.09, 129,221.14 and 57,790.51 is: 79,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,621.09 : 129,221.14 = 57,790.51 : x
  2. Step 2: Convert to fraction form
    93,621.09/129,221.14 = 57,790.51/x
  3. Step 3: Cross multiply
    93,621.09x = 129,221.14 × 57,790.51
  4. Step 4: Simplify right side
    93,621.09x = 7,467,755,707.27
  5. Step 5: Solve for x
    x = 7,467,755,707.27/93,621.09
  6. Step 6: Final answer
    x = 79,765.74

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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.