Home / 42,681.29-64,021.91-11,088.71

Finding the Fourth Proportional to 42,681.29, 64,021.91 and 11,088.71

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Solution

The fourth proportional to 42,681.29, 64,021.91 and 11,088.71 is: 16,633.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,681.29 : 64,021.91 = 11,088.71 : x
  2. Step 2: Convert to fraction form
    42,681.29/64,021.91 = 11,088.71/x
  3. Step 3: Cross multiply
    42,681.29x = 64,021.91 × 11,088.71
  4. Step 4: Simplify right side
    42,681.29x = 709,920,018.08
  5. Step 5: Solve for x
    x = 709,920,018.08/42,681.29
  6. Step 6: Final answer
    x = 16,633.05

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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.