Home / 42,420.30-63,630.45-35,859.30

Finding the Fourth Proportional to 42,420.30, 63,630.45 and 35,859.30

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Solution

The fourth proportional to 42,420.30, 63,630.45 and 35,859.30 is: 53,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,420.30 : 63,630.45 = 35,859.30 : x
  2. Step 2: Convert to fraction form
    42,420.30/63,630.45 = 35,859.30/x
  3. Step 3: Cross multiply
    42,420.30x = 63,630.45 × 35,859.30
  4. Step 4: Simplify right side
    42,420.30x = 2,281,743,395.69
  5. Step 5: Solve for x
    x = 2,281,743,395.69/42,420.30
  6. Step 6: Final answer
    x = 53,788.95

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1.5x scale

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.