Home / 64,765.44-89,325.65-42,111.76

Finding the Fourth Proportional to 64,765.44, 89,325.65 and 42,111.76

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Solution

The fourth proportional to 64,765.44, 89,325.65 and 42,111.76 is: 58,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,765.44 : 89,325.65 = 42,111.76 : x
  2. Step 2: Convert to fraction form
    64,765.44/89,325.65 = 42,111.76/x
  3. Step 3: Cross multiply
    64,765.44x = 89,325.65 × 42,111.76
  4. Step 4: Simplify right side
    64,765.44x = 3,761,660,334.64
  5. Step 5: Solve for x
    x = 3,761,660,334.64/64,765.44
  6. Step 6: Final answer
    x = 58,081.29

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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.