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Finding the Fourth Proportional to 70,541.78, 97,347.60 and 40,327.79

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Solution

The fourth proportional to 70,541.78, 97,347.60 and 40,327.79 is: 55,652.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,541.78 : 97,347.60 = 40,327.79 : x
  2. Step 2: Convert to fraction form
    70,541.78/97,347.60 = 40,327.79/x
  3. Step 3: Cross multiply
    70,541.78x = 97,347.60 × 40,327.79
  4. Step 4: Simplify right side
    70,541.78x = 3,925,813,083.07
  5. Step 5: Solve for x
    x = 3,925,813,083.07/70,541.78
  6. Step 6: Final answer
    x = 55,652.32

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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.