Home / 93,941.12-129,639.28-50,920.72

Finding the Fourth Proportional to 93,941.12, 129,639.28 and 50,920.72

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Solution

The fourth proportional to 93,941.12, 129,639.28 and 50,920.72 is: 70,270.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,941.12 : 129,639.28 = 50,920.72 : x
  2. Step 2: Convert to fraction form
    93,941.12/129,639.28 = 50,920.72/x
  3. Step 3: Cross multiply
    93,941.12x = 129,639.28 × 50,920.72
  4. Step 4: Simplify right side
    93,941.12x = 6,601,325,477.88
  5. Step 5: Solve for x
    x = 6,601,325,477.88/93,941.12
  6. Step 6: Final answer
    x = 70,270.88

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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.