Home / 93,131.13-128,545.67-57,351.12

Finding the Fourth Proportional to 93,131.13, 128,545.67 and 57,351.12

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Solution

The fourth proportional to 93,131.13, 128,545.67 and 57,351.12 is: 79,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,131.13 : 128,545.67 = 57,351.12 : x
  2. Step 2: Convert to fraction form
    93,131.13/128,545.67 = 57,351.12/x
  3. Step 3: Cross multiply
    93,131.13x = 128,545.67 × 57,351.12
  4. Step 4: Simplify right side
    93,131.13x = 7,372,237,858.89
  5. Step 5: Solve for x
    x = 7,372,237,858.89/93,131.13
  6. Step 6: Final answer
    x = 79,159.76

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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.