Home / 86,275.02-129,237.36-43,554.07

Finding the Fourth Proportional to 86,275.02, 129,237.36 and 43,554.07

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Solution

The fourth proportional to 86,275.02, 129,237.36 and 43,554.07 is: 65,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,275.02 : 129,237.36 = 43,554.07 : x
  2. Step 2: Convert to fraction form
    86,275.02/129,237.36 = 43,554.07/x
  3. Step 3: Cross multiply
    86,275.02x = 129,237.36 × 43,554.07
  4. Step 4: Simplify right side
    86,275.02x = 5,628,813,022.27
  5. Step 5: Solve for x
    x = 5,628,813,022.27/86,275.02
  6. Step 6: Final answer
    x = 65,242.67

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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.