Home / 74,032.16-102,140.93-45,321.80

Finding the Fourth Proportional to 74,032.16, 102,140.93 and 45,321.80

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Solution

The fourth proportional to 74,032.16, 102,140.93 and 45,321.80 is: 62,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,032.16 : 102,140.93 = 45,321.80 : x
  2. Step 2: Convert to fraction form
    74,032.16/102,140.93 = 45,321.80/x
  3. Step 3: Cross multiply
    74,032.16x = 102,140.93 × 45,321.80
  4. Step 4: Simplify right side
    74,032.16x = 4,629,210,574.67
  5. Step 5: Solve for x
    x = 4,629,210,574.67/74,032.16
  6. Step 6: Final answer
    x = 62,529.72

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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.