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Finding the Fourth Proportional to 63,840.86, 88,018.03 and 52,312.90

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Solution

The fourth proportional to 63,840.86, 88,018.03 and 52,312.90 is: 72,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,840.86 : 88,018.03 = 52,312.90 : x
  2. Step 2: Convert to fraction form
    63,840.86/88,018.03 = 52,312.90/x
  3. Step 3: Cross multiply
    63,840.86x = 88,018.03 × 52,312.90
  4. Step 4: Simplify right side
    63,840.86x = 4,604,478,401.59
  5. Step 5: Solve for x
    x = 4,604,478,401.59/63,840.86
  6. Step 6: Final answer
    x = 72,124.32

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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.