Home / 77,988.29-116,945.37-40,510.80

Finding the Fourth Proportional to 77,988.29, 116,945.37 and 40,510.80

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Solution

The fourth proportional to 77,988.29, 116,945.37 and 40,510.80 is: 60,746.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,988.29 : 116,945.37 = 40,510.80 : x
  2. Step 2: Convert to fraction form
    77,988.29/116,945.37 = 40,510.80/x
  3. Step 3: Cross multiply
    77,988.29x = 116,945.37 × 40,510.80
  4. Step 4: Simplify right side
    77,988.29x = 4,737,550,495.00
  5. Step 5: Solve for x
    x = 4,737,550,495.00/77,988.29
  6. Step 6: Final answer
    x = 60,746.95

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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.