Home / 43,117.76-64,686.37-13,134.68

Finding the Fourth Proportional to 43,117.76, 64,686.37 and 13,134.68

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Solution

The fourth proportional to 43,117.76, 64,686.37 and 13,134.68 is: 19,704.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,117.76 : 64,686.37 = 13,134.68 : x
  2. Step 2: Convert to fraction form
    43,117.76/64,686.37 = 13,134.68/x
  3. Step 3: Cross multiply
    43,117.76x = 64,686.37 × 13,134.68
  4. Step 4: Simplify right side
    43,117.76x = 849,634,900.12
  5. Step 5: Solve for x
    x = 849,634,900.12/43,117.76
  6. Step 6: Final answer
    x = 19,704.99

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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.