Home / 85,292.42-127,966.93-26,128.67

Finding the Fourth Proportional to 85,292.42, 127,966.93 and 26,128.67

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Solution

The fourth proportional to 85,292.42, 127,966.93 and 26,128.67 is: 39,201.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,292.42 : 127,966.93 = 26,128.67 : x
  2. Step 2: Convert to fraction form
    85,292.42/127,966.93 = 26,128.67/x
  3. Step 3: Cross multiply
    85,292.42x = 127,966.93 × 26,128.67
  4. Step 4: Simplify right side
    85,292.42x = 3,343,604,979.73
  5. Step 5: Solve for x
    x = 3,343,604,979.73/85,292.42
  6. Step 6: Final answer
    x = 39,201.67

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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.