Home / 84,271.77-126,426.51-31,681.71

Finding the Fourth Proportional to 84,271.77, 126,426.51 and 31,681.71

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Solution

The fourth proportional to 84,271.77, 126,426.51 and 31,681.71 is: 47,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,271.77 : 126,426.51 = 31,681.71 : x
  2. Step 2: Convert to fraction form
    84,271.77/126,426.51 = 31,681.71/x
  3. Step 3: Cross multiply
    84,271.77x = 126,426.51 × 31,681.71
  4. Step 4: Simplify right side
    84,271.77x = 4,005,408,026.13
  5. Step 5: Solve for x
    x = 4,005,408,026.13/84,271.77
  6. Step 6: Final answer
    x = 47,529.65

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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.