Home / 77,485.20-116,117.10-44,134.80

Finding the Fourth Proportional to 77,485.20, 116,117.10 and 44,134.80

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Solution

The fourth proportional to 77,485.20, 116,117.10 and 44,134.80 is: 66,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,485.20 : 116,117.10 = 44,134.80 : x
  2. Step 2: Convert to fraction form
    77,485.20/116,117.10 = 44,134.80/x
  3. Step 3: Cross multiply
    77,485.20x = 116,117.10 × 44,134.80
  4. Step 4: Simplify right side
    77,485.20x = 5,124,804,985.08
  5. Step 5: Solve for x
    x = 5,124,804,985.08/77,485.20
  6. Step 6: Final answer
    x = 66,139.15

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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.