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Finding the Fourth Proportional to 64,915.20, 97,372.80 and 59,885.10

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Solution

The fourth proportional to 64,915.20, 97,372.80 and 59,885.10 is: 89,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,915.20 : 97,372.80 = 59,885.10 : x
  2. Step 2: Convert to fraction form
    64,915.20/97,372.80 = 59,885.10/x
  3. Step 3: Cross multiply
    64,915.20x = 97,372.80 × 59,885.10
  4. Step 4: Simplify right side
    64,915.20x = 5,831,179,865.28
  5. Step 5: Solve for x
    x = 5,831,179,865.28/64,915.20
  6. Step 6: Final answer
    x = 89,827.65

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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.