Home / 85,848.30-128,772.45-22,668.30

Finding the Fourth Proportional to 85,848.30, 128,772.45 and 22,668.30

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Solution

The fourth proportional to 85,848.30, 128,772.45 and 22,668.30 is: 34,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,848.30 : 128,772.45 = 22,668.30 : x
  2. Step 2: Convert to fraction form
    85,848.30/128,772.45 = 22,668.30/x
  3. Step 3: Cross multiply
    85,848.30x = 128,772.45 × 22,668.30
  4. Step 4: Simplify right side
    85,848.30x = 2,919,052,528.34
  5. Step 5: Solve for x
    x = 2,919,052,528.34/85,848.30
  6. Step 6: Final answer
    x = 34,002.45

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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.