Home / 77,720.40-116,580.60-31,006.80

Finding the Fourth Proportional to 77,720.40, 116,580.60 and 31,006.80

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Solution

The fourth proportional to 77,720.40, 116,580.60 and 31,006.80 is: 46,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,720.40 : 116,580.60 = 31,006.80 : x
  2. Step 2: Convert to fraction form
    77,720.40/116,580.60 = 31,006.80/x
  3. Step 3: Cross multiply
    77,720.40x = 116,580.60 × 31,006.80
  4. Step 4: Simplify right side
    77,720.40x = 3,614,791,348.08
  5. Step 5: Solve for x
    x = 3,614,791,348.08/77,720.40
  6. Step 6: Final answer
    x = 46,510.20

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1.5x scale

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.