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Finding the Fourth Proportional to 91,070.25, 125,676.95 and 51,326.25

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Solution

The fourth proportional to 91,070.25, 125,676.95 and 51,326.25 is: 70,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,070.25 : 125,676.95 = 51,326.25 : x
  2. Step 2: Convert to fraction form
    91,070.25/125,676.95 = 51,326.25/x
  3. Step 3: Cross multiply
    91,070.25x = 125,676.95 × 51,326.25
  4. Step 4: Simplify right side
    91,070.25x = 6,450,526,298.31
  5. Step 5: Solve for x
    x = 6,450,526,298.31/91,070.25
  6. Step 6: Final answer
    x = 70,830.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.