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Finding the Fourth Proportional to 64,985.42, 97,487.42 and 20,010.58

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Solution

The fourth proportional to 64,985.42, 97,487.42 and 20,010.58 is: 30,018.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,985.42 : 97,487.42 = 20,010.58 : x
  2. Step 2: Convert to fraction form
    64,985.42/97,487.42 = 20,010.58/x
  3. Step 3: Cross multiply
    64,985.42x = 97,487.42 × 20,010.58
  4. Step 4: Simplify right side
    64,985.42x = 1,950,779,229.41
  5. Step 5: Solve for x
    x = 1,950,779,229.41/64,985.42
  6. Step 6: Final answer
    x = 30,018.72

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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.