Home / 66,225.20-99,337.80-42,605.60

Finding the Fourth Proportional to 66,225.20, 99,337.80 and 42,605.60

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Solution

The fourth proportional to 66,225.20, 99,337.80 and 42,605.60 is: 63,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,225.20 : 99,337.80 = 42,605.60 : x
  2. Step 2: Convert to fraction form
    66,225.20/99,337.80 = 42,605.60/x
  3. Step 3: Cross multiply
    66,225.20x = 99,337.80 × 42,605.60
  4. Step 4: Simplify right side
    66,225.20x = 4,232,346,571.68
  5. Step 5: Solve for x
    x = 4,232,346,571.68/66,225.20
  6. Step 6: Final answer
    x = 63,908.40

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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.