Home / 74,782.46-103,199.87-42,957.51

Finding the Fourth Proportional to 74,782.46, 103,199.87 and 42,957.51

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Solution

The fourth proportional to 74,782.46, 103,199.87 and 42,957.51 is: 59,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,782.46 : 103,199.87 = 42,957.51 : x
  2. Step 2: Convert to fraction form
    74,782.46/103,199.87 = 42,957.51/x
  3. Step 3: Cross multiply
    74,782.46x = 103,199.87 × 42,957.51
  4. Step 4: Simplify right side
    74,782.46x = 4,433,209,232.74
  5. Step 5: Solve for x
    x = 4,433,209,232.74/74,782.46
  6. Step 6: Final answer
    x = 59,281.41

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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.