Home / 64,607.66-89,154.18-39,128.18

Finding the Fourth Proportional to 64,607.66, 89,154.18 and 39,128.18

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Solution

The fourth proportional to 64,607.66, 89,154.18 and 39,128.18 is: 53,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,607.66 : 89,154.18 = 39,128.18 : x
  2. Step 2: Convert to fraction form
    64,607.66/89,154.18 = 39,128.18/x
  3. Step 3: Cross multiply
    64,607.66x = 89,154.18 × 39,128.18
  4. Step 4: Simplify right side
    64,607.66x = 3,488,440,357.02
  5. Step 5: Solve for x
    x = 3,488,440,357.02/64,607.66
  6. Step 6: Final answer
    x = 53,994.22

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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.