Home / 85,444.17-128,188.14-26,280.36

Finding the Fourth Proportional to 85,444.17, 128,188.14 and 26,280.36

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Solution

The fourth proportional to 85,444.17, 128,188.14 and 26,280.36 is: 39,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,444.17 : 128,188.14 = 26,280.36 : x
  2. Step 2: Convert to fraction form
    85,444.17/128,188.14 = 26,280.36/x
  3. Step 3: Cross multiply
    85,444.17x = 128,188.14 × 26,280.36
  4. Step 4: Simplify right side
    85,444.17x = 3,368,830,466.93
  5. Step 5: Solve for x
    x = 3,368,830,466.93/85,444.17
  6. Step 6: Final answer
    x = 39,427.27

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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.