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Finding the Fourth Proportional to 93,040.48, 128,425.10 and 52,781.01

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Solution

The fourth proportional to 93,040.48, 128,425.10 and 52,781.01 is: 72,854.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,040.48 : 128,425.10 = 52,781.01 : x
  2. Step 2: Convert to fraction form
    93,040.48/128,425.10 = 52,781.01/x
  3. Step 3: Cross multiply
    93,040.48x = 128,425.10 × 52,781.01
  4. Step 4: Simplify right side
    93,040.48x = 6,778,406,487.35
  5. Step 5: Solve for x
    x = 6,778,406,487.35/93,040.48
  6. Step 6: Final answer
    x = 72,854.38

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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.