Home / 77,417.20-116,125.80-37,999.60

Finding the Fourth Proportional to 77,417.20, 116,125.80 and 37,999.60

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Solution

The fourth proportional to 77,417.20, 116,125.80 and 37,999.60 is: 56,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,417.20 : 116,125.80 = 37,999.60 : x
  2. Step 2: Convert to fraction form
    77,417.20/116,125.80 = 37,999.60/x
  3. Step 3: Cross multiply
    77,417.20x = 116,125.80 × 37,999.60
  4. Step 4: Simplify right side
    77,417.20x = 4,412,733,949.68
  5. Step 5: Solve for x
    x = 4,412,733,949.68/77,417.20
  6. Step 6: Final answer
    x = 56,999.40

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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.