Home / 86,785.09-130,127.06-42,366.85

Finding the Fourth Proportional to 86,785.09, 130,127.06 and 42,366.85

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Solution

The fourth proportional to 86,785.09, 130,127.06 and 42,366.85 is: 63,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,785.09 : 130,127.06 = 42,366.85 : x
  2. Step 2: Convert to fraction form
    86,785.09/130,127.06 = 42,366.85/x
  3. Step 3: Cross multiply
    86,785.09x = 130,127.06 × 42,366.85
  4. Step 4: Simplify right side
    86,785.09x = 5,513,073,420.13
  5. Step 5: Solve for x
    x = 5,513,073,420.13/86,785.09
  6. Step 6: Final answer
    x = 63,525.58

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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.