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Finding the Fourth Proportional to 101,373.34, 139,889.21 and 56,047.76

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Solution

The fourth proportional to 101,373.34, 139,889.21 and 56,047.76 is: 77,342.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,373.34 : 139,889.21 = 56,047.76 : x
  2. Step 2: Convert to fraction form
    101,373.34/139,889.21 = 56,047.76/x
  3. Step 3: Cross multiply
    101,373.34x = 139,889.21 × 56,047.76
  4. Step 4: Simplify right side
    101,373.34x = 7,840,476,868.67
  5. Step 5: Solve for x
    x = 7,840,476,868.67/101,373.34
  6. Step 6: Final answer
    x = 77,342.59

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1.5x scale

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.