Home / 66,500.32-99,749.40-31,465.12

Finding the Fourth Proportional to 66,500.32, 99,749.40 and 31,465.12

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Solution

The fourth proportional to 66,500.32, 99,749.40 and 31,465.12 is: 47,197.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,500.32 : 99,749.40 = 31,465.12 : x
  2. Step 2: Convert to fraction form
    66,500.32/99,749.40 = 31,465.12/x
  3. Step 3: Cross multiply
    66,500.32x = 99,749.40 × 31,465.12
  4. Step 4: Simplify right side
    66,500.32x = 3,138,626,840.93
  5. Step 5: Solve for x
    x = 3,138,626,840.93/66,500.32
  6. Step 6: Final answer
    x = 47,197.17

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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.