Home / 74,705.04-103,089.26-40,713.42

Finding the Fourth Proportional to 74,705.04, 103,089.26 and 40,713.42

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Solution

The fourth proportional to 74,705.04, 103,089.26 and 40,713.42 is: 56,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,705.04 : 103,089.26 = 40,713.42 : x
  2. Step 2: Convert to fraction form
    74,705.04/103,089.26 = 40,713.42/x
  3. Step 3: Cross multiply
    74,705.04x = 103,089.26 × 40,713.42
  4. Step 4: Simplify right side
    74,705.04x = 4,197,116,339.87
  5. Step 5: Solve for x
    x = 4,197,116,339.87/74,705.04
  6. Step 6: Final answer
    x = 56,182.51

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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.