Home / 51,012.21-70,349.77-31,885.89

Finding the Fourth Proportional to 51,012.21, 70,349.77 and 31,885.89

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Solution

The fourth proportional to 51,012.21, 70,349.77 and 31,885.89 is: 43,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,012.21 : 70,349.77 = 31,885.89 : x
  2. Step 2: Convert to fraction form
    51,012.21/70,349.77 = 31,885.89/x
  3. Step 3: Cross multiply
    51,012.21x = 70,349.77 × 31,885.89
  4. Step 4: Simplify right side
    51,012.21x = 2,243,165,027.75
  5. Step 5: Solve for x
    x = 2,243,165,027.75/51,012.21
  6. Step 6: Final answer
    x = 43,973.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.