Home / 77,081.40-115,622.10-59,563.80

Finding the Fourth Proportional to 77,081.40, 115,622.10 and 59,563.80

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Solution

The fourth proportional to 77,081.40, 115,622.10 and 59,563.80 is: 89,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,081.40 : 115,622.10 = 59,563.80 : x
  2. Step 2: Convert to fraction form
    77,081.40/115,622.10 = 59,563.80/x
  3. Step 3: Cross multiply
    77,081.40x = 115,622.10 × 59,563.80
  4. Step 4: Simplify right side
    77,081.40x = 6,886,891,639.98
  5. Step 5: Solve for x
    x = 6,886,891,639.98/77,081.40
  6. Step 6: Final answer
    x = 89,345.70

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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.