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Finding the Fourth Proportional to 64,710, 97,064.88 and 36,988.56

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Solution

The fourth proportional to 64,710, 97,064.88 and 36,988.56 is: 55,482.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,710 : 97,064.88 = 36,988.56 : x
  2. Step 2: Convert to fraction form
    64,710/97,064.88 = 36,988.56/x
  3. Step 3: Cross multiply
    64,710x = 97,064.88 × 36,988.56
  4. Step 4: Simplify right side
    64,710x = 3,590,290,137.77
  5. Step 5: Solve for x
    x = 3,590,290,137.77/64,710
  6. Step 6: Final answer
    x = 55,482.77

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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.