Home / 83,818.09-125,437.08-51,784

Finding the Fourth Proportional to 83,818.09, 125,437.08 and 51,784

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Solution

The fourth proportional to 83,818.09, 125,437.08 and 51,784 is: 77,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,818.09 : 125,437.08 = 51,784 : x
  2. Step 2: Convert to fraction form
    83,818.09/125,437.08 = 51,784/x
  3. Step 3: Cross multiply
    83,818.09x = 125,437.08 × 51,784
  4. Step 4: Simplify right side
    83,818.09x = 6,495,633,750.72
  5. Step 5: Solve for x
    x = 6,495,633,750.72/83,818.09
  6. Step 6: Final answer
    x = 77,496.80

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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.