Home / 93,739.79-129,340.90-55,511.35

Finding the Fourth Proportional to 93,739.79, 129,340.90 and 55,511.35

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Solution

The fourth proportional to 93,739.79, 129,340.90 and 55,511.35 is: 76,593.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,739.79 : 129,340.90 = 55,511.35 : x
  2. Step 2: Convert to fraction form
    93,739.79/129,340.90 = 55,511.35/x
  3. Step 3: Cross multiply
    93,739.79x = 129,340.90 × 55,511.35
  4. Step 4: Simplify right side
    93,739.79x = 7,179,887,969.22
  5. Step 5: Solve for x
    x = 7,179,887,969.22/93,739.79
  6. Step 6: Final answer
    x = 76,593.81

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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.