Home / 75,606.40-104,348.28-45,408.32

Finding the Fourth Proportional to 75,606.40, 104,348.28 and 45,408.32

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Solution

The fourth proportional to 75,606.40, 104,348.28 and 45,408.32 is: 62,670.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,606.40 : 104,348.28 = 45,408.32 : x
  2. Step 2: Convert to fraction form
    75,606.40/104,348.28 = 45,408.32/x
  3. Step 3: Cross multiply
    75,606.40x = 104,348.28 × 45,408.32
  4. Step 4: Simplify right side
    75,606.40x = 4,738,280,089.69
  5. Step 5: Solve for x
    x = 4,738,280,089.69/75,606.40
  6. Step 6: Final answer
    x = 62,670.36

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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.