Home / 86,055.42-129,038.57-38,629.67

Finding the Fourth Proportional to 86,055.42, 129,038.57 and 38,629.67

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Solution

The fourth proportional to 86,055.42, 129,038.57 and 38,629.67 is: 57,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,055.42 : 129,038.57 = 38,629.67 : x
  2. Step 2: Convert to fraction form
    86,055.42/129,038.57 = 38,629.67/x
  3. Step 3: Cross multiply
    86,055.42x = 129,038.57 × 38,629.67
  4. Step 4: Simplify right side
    86,055.42x = 4,984,717,376.37
  5. Step 5: Solve for x
    x = 4,984,717,376.37/86,055.42
  6. Step 6: Final answer
    x = 57,924.50

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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.