Home / 65,123.36-97,584-45,171.80

Finding the Fourth Proportional to 65,123.36, 97,584 and 45,171.80

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Solution

The fourth proportional to 65,123.36, 97,584 and 45,171.80 is: 67,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,123.36 : 97,584 = 45,171.80 : x
  2. Step 2: Convert to fraction form
    65,123.36/97,584 = 45,171.80/x
  3. Step 3: Cross multiply
    65,123.36x = 97,584 × 45,171.80
  4. Step 4: Simplify right side
    65,123.36x = 4,408,044,931.20
  5. Step 5: Solve for x
    x = 4,408,044,931.20/65,123.36
  6. Step 6: Final answer
    x = 67,687.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.