Home / 78,939.61-108,931.43-44,951.57

Finding the Fourth Proportional to 78,939.61, 108,931.43 and 44,951.57

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Solution

The fourth proportional to 78,939.61, 108,931.43 and 44,951.57 is: 62,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,939.61 : 108,931.43 = 44,951.57 : x
  2. Step 2: Convert to fraction form
    78,939.61/108,931.43 = 44,951.57/x
  3. Step 3: Cross multiply
    78,939.61x = 108,931.43 × 44,951.57
  4. Step 4: Simplify right side
    78,939.61x = 4,896,638,800.85
  5. Step 5: Solve for x
    x = 4,896,638,800.85/78,939.61
  6. Step 6: Final answer
    x = 62,030.19

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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.