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Finding the Fourth Proportional to 60,999.40, 91,499.10 and 58,666.60

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Solution

The fourth proportional to 60,999.40, 91,499.10 and 58,666.60 is: 87,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,999.40 : 91,499.10 = 58,666.60 : x
  2. Step 2: Convert to fraction form
    60,999.40/91,499.10 = 58,666.60/x
  3. Step 3: Cross multiply
    60,999.40x = 91,499.10 × 58,666.60
  4. Step 4: Simplify right side
    60,999.40x = 5,367,941,100.06
  5. Step 5: Solve for x
    x = 5,367,941,100.06/60,999.40
  6. Step 6: Final answer
    x = 87,999.90

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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.