Home / 93,749.76-129,240.12-66,845.64

Finding the Fourth Proportional to 93,749.76, 129,240.12 and 66,845.64

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Solution

The fourth proportional to 93,749.76, 129,240.12 and 66,845.64 is: 92,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,749.76 : 129,240.12 = 66,845.64 : x
  2. Step 2: Convert to fraction form
    93,749.76/129,240.12 = 66,845.64/x
  3. Step 3: Cross multiply
    93,749.76x = 129,240.12 × 66,845.64
  4. Step 4: Simplify right side
    93,749.76x = 8,639,138,535.08
  5. Step 5: Solve for x
    x = 8,639,138,535.08/93,749.76
  6. Step 6: Final answer
    x = 92,151.05

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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.