Home / 85,889.84-128,848.55-26,739.18

Finding the Fourth Proportional to 85,889.84, 128,848.55 and 26,739.18

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Solution

The fourth proportional to 85,889.84, 128,848.55 and 26,739.18 is: 40,113.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,889.84 : 128,848.55 = 26,739.18 : x
  2. Step 2: Convert to fraction form
    85,889.84/128,848.55 = 26,739.18/x
  3. Step 3: Cross multiply
    85,889.84x = 128,848.55 × 26,739.18
  4. Step 4: Simplify right side
    85,889.84x = 3,445,304,437.49
  5. Step 5: Solve for x
    x = 3,445,304,437.49/85,889.84
  6. Step 6: Final answer
    x = 40,113.06

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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.