Home / 86,723.80-130,085.70-58,730.20

Finding the Fourth Proportional to 86,723.80, 130,085.70 and 58,730.20

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Solution

The fourth proportional to 86,723.80, 130,085.70 and 58,730.20 is: 88,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,723.80 : 130,085.70 = 58,730.20 : x
  2. Step 2: Convert to fraction form
    86,723.80/130,085.70 = 58,730.20/x
  3. Step 3: Cross multiply
    86,723.80x = 130,085.70 × 58,730.20
  4. Step 4: Simplify right side
    86,723.80x = 7,639,959,178.14
  5. Step 5: Solve for x
    x = 7,639,959,178.14/86,723.80
  6. Step 6: Final answer
    x = 88,095.30

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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.