Home / 61,431.20-84,777.79-34,575.45

Finding the Fourth Proportional to 61,431.20, 84,777.79 and 34,575.45

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Solution

The fourth proportional to 61,431.20, 84,777.79 and 34,575.45 is: 47,715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,431.20 : 84,777.79 = 34,575.45 : x
  2. Step 2: Convert to fraction form
    61,431.20/84,777.79 = 34,575.45/x
  3. Step 3: Cross multiply
    61,431.20x = 84,777.79 × 34,575.45
  4. Step 4: Simplify right side
    61,431.20x = 2,931,230,066.38
  5. Step 5: Solve for x
    x = 2,931,230,066.38/61,431.20
  6. Step 6: Final answer
    x = 47,715.66

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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.