Home / 74,675.21-103,042.89-42,409.62

Finding the Fourth Proportional to 74,675.21, 103,042.89 and 42,409.62

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Solution

The fourth proportional to 74,675.21, 103,042.89 and 42,409.62 is: 58,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,675.21 : 103,042.89 = 42,409.62 : x
  2. Step 2: Convert to fraction form
    74,675.21/103,042.89 = 42,409.62/x
  3. Step 3: Cross multiply
    74,675.21x = 103,042.89 × 42,409.62
  4. Step 4: Simplify right side
    74,675.21x = 4,370,009,808.60
  5. Step 5: Solve for x
    x = 4,370,009,808.60/74,675.21
  6. Step 6: Final answer
    x = 58,520.22

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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.