Home / 93,931.21-129,630.38-55,713.39

Finding the Fourth Proportional to 93,931.21, 129,630.38 and 55,713.39

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Solution

The fourth proportional to 93,931.21, 129,630.38 and 55,713.39 is: 76,887.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,931.21 : 129,630.38 = 55,713.39 : x
  2. Step 2: Convert to fraction form
    93,931.21/129,630.38 = 55,713.39/x
  3. Step 3: Cross multiply
    93,931.21x = 129,630.38 × 55,713.39
  4. Step 4: Simplify right side
    93,931.21x = 7,222,147,152.11
  5. Step 5: Solve for x
    x = 7,222,147,152.11/93,931.21
  6. Step 6: Final answer
    x = 76,887.62

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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.