Home / 75,238.72-103,840.32-43,401.28

Finding the Fourth Proportional to 75,238.72, 103,840.32 and 43,401.28

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Solution

The fourth proportional to 75,238.72, 103,840.32 and 43,401.28 is: 59,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,238.72 : 103,840.32 = 43,401.28 : x
  2. Step 2: Convert to fraction form
    75,238.72/103,840.32 = 43,401.28/x
  3. Step 3: Cross multiply
    75,238.72x = 103,840.32 × 43,401.28
  4. Step 4: Simplify right side
    75,238.72x = 4,506,802,803.61
  5. Step 5: Solve for x
    x = 4,506,802,803.61/75,238.72
  6. Step 6: Final answer
    x = 59,900.05

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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.