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Finding the Fourth Proportional to 42,897.80, 64,420.50 and 41,052.51

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Solution

The fourth proportional to 42,897.80, 64,420.50 and 41,052.51 is: 61,649.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,897.80 : 64,420.50 = 41,052.51 : x
  2. Step 2: Convert to fraction form
    42,897.80/64,420.50 = 41,052.51/x
  3. Step 3: Cross multiply
    42,897.80x = 64,420.50 × 41,052.51
  4. Step 4: Simplify right side
    42,897.80x = 2,644,623,220.46
  5. Step 5: Solve for x
    x = 2,644,623,220.46/42,897.80
  6. Step 6: Final answer
    x = 61,649.40

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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.