Home / 65,128.19-89,882.87-40,933.08

Finding the Fourth Proportional to 65,128.19, 89,882.87 and 40,933.08

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Solution

The fourth proportional to 65,128.19, 89,882.87 and 40,933.08 is: 56,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,128.19 : 89,882.87 = 40,933.08 : x
  2. Step 2: Convert to fraction form
    65,128.19/89,882.87 = 40,933.08/x
  3. Step 3: Cross multiply
    65,128.19x = 89,882.87 × 40,933.08
  4. Step 4: Simplify right side
    65,128.19x = 3,679,182,503.67
  5. Step 5: Solve for x
    x = 3,679,182,503.67/65,128.19
  6. Step 6: Final answer
    x = 56,491.40

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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.