Home / 101,748.74-140,417.81-56,423.69

Finding the Fourth Proportional to 101,748.74, 140,417.81 and 56,423.69

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Solution

The fourth proportional to 101,748.74, 140,417.81 and 56,423.69 is: 77,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,748.74 : 140,417.81 = 56,423.69 : x
  2. Step 2: Convert to fraction form
    101,748.74/140,417.81 = 56,423.69/x
  3. Step 3: Cross multiply
    101,748.74x = 140,417.81 × 56,423.69
  4. Step 4: Simplify right side
    101,748.74x = 7,922,889,997.71
  5. Step 5: Solve for x
    x = 7,922,889,997.71/101,748.74
  6. Step 6: Final answer
    x = 77,867.21

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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.