Home / 93,136.50-128,536.05-53,400.18

Finding the Fourth Proportional to 93,136.50, 128,536.05 and 53,400.18

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Solution

The fourth proportional to 93,136.50, 128,536.05 and 53,400.18 is: 73,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,136.50 : 128,536.05 = 53,400.18 : x
  2. Step 2: Convert to fraction form
    93,136.50/128,536.05 = 53,400.18/x
  3. Step 3: Cross multiply
    93,136.50x = 128,536.05 × 53,400.18
  4. Step 4: Simplify right side
    93,136.50x = 6,863,848,206.49
  5. Step 5: Solve for x
    x = 6,863,848,206.49/93,136.50
  6. Step 6: Final answer
    x = 73,696.65

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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.