Home / 51,312.78-70,818.75-28,653.26

Finding the Fourth Proportional to 51,312.78, 70,818.75 and 28,653.26

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Solution

The fourth proportional to 51,312.78, 70,818.75 and 28,653.26 is: 39,545.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,312.78 : 70,818.75 = 28,653.26 : x
  2. Step 2: Convert to fraction form
    51,312.78/70,818.75 = 28,653.26/x
  3. Step 3: Cross multiply
    51,312.78x = 70,818.75 × 28,653.26
  4. Step 4: Simplify right side
    51,312.78x = 2,029,187,702.53
  5. Step 5: Solve for x
    x = 2,029,187,702.53/51,312.78
  6. Step 6: Final answer
    x = 39,545.46

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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.