Home / 105,271.21-145,274.65-57,524.56

Finding the Fourth Proportional to 105,271.21, 145,274.65 and 57,524.56

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Solution

The fourth proportional to 105,271.21, 145,274.65 and 57,524.56 is: 79,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,271.21 : 145,274.65 = 57,524.56 : x
  2. Step 2: Convert to fraction form
    105,271.21/145,274.65 = 57,524.56/x
  3. Step 3: Cross multiply
    105,271.21x = 145,274.65 × 57,524.56
  4. Step 4: Simplify right side
    105,271.21x = 8,356,860,641.31
  5. Step 5: Solve for x
    x = 8,356,860,641.31/105,271.21
  6. Step 6: Final answer
    x = 79,384.10

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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.