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Finding the Fourth Proportional to 64,699.45, 88,808.24 and 57,467.77

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Solution

The fourth proportional to 64,699.45, 88,808.24 and 57,467.77 is: 78,881.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,699.45 : 88,808.24 = 57,467.77 : x
  2. Step 2: Convert to fraction form
    64,699.45/88,808.24 = 57,467.77/x
  3. Step 3: Cross multiply
    64,699.45x = 88,808.24 × 57,467.77
  4. Step 4: Simplify right side
    64,699.45x = 5,103,611,432.07
  5. Step 5: Solve for x
    x = 5,103,611,432.07/64,699.45
  6. Step 6: Final answer
    x = 78,881.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.