Home / 66,762.09-92,128.14-38,082.51

Finding the Fourth Proportional to 66,762.09, 92,128.14 and 38,082.51

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Solution

The fourth proportional to 66,762.09, 92,128.14 and 38,082.51 is: 52,551.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,762.09 : 92,128.14 = 38,082.51 : x
  2. Step 2: Convert to fraction form
    66,762.09/92,128.14 = 38,082.51/x
  3. Step 3: Cross multiply
    66,762.09x = 92,128.14 × 38,082.51
  4. Step 4: Simplify right side
    66,762.09x = 3,508,470,812.83
  5. Step 5: Solve for x
    x = 3,508,470,812.83/66,762.09
  6. Step 6: Final answer
    x = 52,551.84

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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.