Home / 93,136.50-128,528.37-50,695.74

Finding the Fourth Proportional to 93,136.50, 128,528.37 and 50,695.74

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Solution

The fourth proportional to 93,136.50, 128,528.37 and 50,695.74 is: 69,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,136.50 : 128,528.37 = 50,695.74 : x
  2. Step 2: Convert to fraction form
    93,136.50/128,528.37 = 50,695.74/x
  3. Step 3: Cross multiply
    93,136.50x = 128,528.37 × 50,695.74
  4. Step 4: Simplify right side
    93,136.50x = 6,515,840,828.14
  5. Step 5: Solve for x
    x = 6,515,840,828.14/93,136.50
  6. Step 6: Final answer
    x = 69,960.12

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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.