Home / 66,060.81-99,126.50-31,000.77

Finding the Fourth Proportional to 66,060.81, 99,126.50 and 31,000.77

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Solution

The fourth proportional to 66,060.81, 99,126.50 and 31,000.77 is: 46,517.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,060.81 : 99,126.50 = 31,000.77 : x
  2. Step 2: Convert to fraction form
    66,060.81/99,126.50 = 31,000.77/x
  3. Step 3: Cross multiply
    66,060.81x = 99,126.50 × 31,000.77
  4. Step 4: Simplify right side
    66,060.81x = 3,072,997,672.40
  5. Step 5: Solve for x
    x = 3,072,997,672.40/66,060.81
  6. Step 6: Final answer
    x = 46,517.71

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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.