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Finding the Fourth Proportional to 92,071.76, 127,130.51 and 71,893.64

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Solution

The fourth proportional to 92,071.76, 127,130.51 and 71,893.64 is: 99,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,071.76 : 127,130.51 = 71,893.64 : x
  2. Step 2: Convert to fraction form
    92,071.76/127,130.51 = 71,893.64/x
  3. Step 3: Cross multiply
    92,071.76x = 127,130.51 × 71,893.64
  4. Step 4: Simplify right side
    92,071.76x = 9,139,875,616.52
  5. Step 5: Solve for x
    x = 9,139,875,616.52/92,071.76
  6. Step 6: Final answer
    x = 99,269.05

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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.