Home / 85,927.98-128,886.84-51,089.34

Finding the Fourth Proportional to 85,927.98, 128,886.84 and 51,089.34

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Solution

The fourth proportional to 85,927.98, 128,886.84 and 51,089.34 is: 76,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,927.98 : 128,886.84 = 51,089.34 : x
  2. Step 2: Convert to fraction form
    85,927.98/128,886.84 = 51,089.34/x
  3. Step 3: Cross multiply
    85,927.98x = 128,886.84 × 51,089.34
  4. Step 4: Simplify right side
    85,927.98x = 6,584,743,590.29
  5. Step 5: Solve for x
    x = 6,584,743,590.29/85,927.98
  6. Step 6: Final answer
    x = 76,630.96

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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.