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Finding the Fourth Proportional to 101,757.81, 140,427.54 and 56,437.77

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Solution

The fourth proportional to 101,757.81, 140,427.54 and 56,437.77 is: 77,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,757.81 : 140,427.54 = 56,437.77 : x
  2. Step 2: Convert to fraction form
    101,757.81/140,427.54 = 56,437.77/x
  3. Step 3: Cross multiply
    101,757.81x = 140,427.54 × 56,437.77
  4. Step 4: Simplify right side
    101,757.81x = 7,925,417,204.19
  5. Step 5: Solve for x
    x = 7,925,417,204.19/101,757.81
  6. Step 6: Final answer
    x = 77,885.10

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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.