Home / 60,420.20-90,630.30-57,358.40

Finding the Fourth Proportional to 60,420.20, 90,630.30 and 57,358.40

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Solution

The fourth proportional to 60,420.20, 90,630.30 and 57,358.40 is: 86,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,420.20 : 90,630.30 = 57,358.40 : x
  2. Step 2: Convert to fraction form
    60,420.20/90,630.30 = 57,358.40/x
  3. Step 3: Cross multiply
    60,420.20x = 90,630.30 × 57,358.40
  4. Step 4: Simplify right side
    60,420.20x = 5,198,408,999.52
  5. Step 5: Solve for x
    x = 5,198,408,999.52/60,420.20
  6. Step 6: Final answer
    x = 86,037.60

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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.