Home / 51,417.07-70,955.08-28,755.79

Finding the Fourth Proportional to 51,417.07, 70,955.08 and 28,755.79

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Solution

The fourth proportional to 51,417.07, 70,955.08 and 28,755.79 is: 39,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,417.07 : 70,955.08 = 28,755.79 : x
  2. Step 2: Convert to fraction form
    51,417.07/70,955.08 = 28,755.79/x
  3. Step 3: Cross multiply
    51,417.07x = 70,955.08 × 28,755.79
  4. Step 4: Simplify right side
    51,417.07x = 2,040,369,379.91
  5. Step 5: Solve for x
    x = 2,040,369,379.91/51,417.07
  6. Step 6: Final answer
    x = 39,682.72

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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.