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Finding the Fourth Proportional to 60,245.60, 90,368.40 and 18,692.60

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Solution

The fourth proportional to 60,245.60, 90,368.40 and 18,692.60 is: 28,038.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,245.60 : 90,368.40 = 18,692.60 : x
  2. Step 2: Convert to fraction form
    60,245.60/90,368.40 = 18,692.60/x
  3. Step 3: Cross multiply
    60,245.60x = 90,368.40 × 18,692.60
  4. Step 4: Simplify right side
    60,245.60x = 1,689,220,353.84
  5. Step 5: Solve for x
    x = 1,689,220,353.84/60,245.60
  6. Step 6: Final answer
    x = 28,038.90

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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.