Home / 96,692.28-145,038.47-30,137.78

Finding the Fourth Proportional to 96,692.28, 145,038.47 and 30,137.78

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Solution

The fourth proportional to 96,692.28, 145,038.47 and 30,137.78 is: 45,206.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,692.28 : 145,038.47 = 30,137.78 : x
  2. Step 2: Convert to fraction form
    96,692.28/145,038.47 = 30,137.78/x
  3. Step 3: Cross multiply
    96,692.28x = 145,038.47 × 30,137.78
  4. Step 4: Simplify right side
    96,692.28x = 4,371,137,500.40
  5. Step 5: Solve for x
    x = 4,371,137,500.40/96,692.28
  6. Step 6: Final answer
    x = 45,206.69

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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.