Home / 45,931.86-68,897.79-12,655.44

Finding the Fourth Proportional to 45,931.86, 68,897.79 and 12,655.44

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Solution

The fourth proportional to 45,931.86, 68,897.79 and 12,655.44 is: 18,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,931.86 : 68,897.79 = 12,655.44 : x
  2. Step 2: Convert to fraction form
    45,931.86/68,897.79 = 12,655.44/x
  3. Step 3: Cross multiply
    45,931.86x = 68,897.79 × 12,655.44
  4. Step 4: Simplify right side
    45,931.86x = 871,931,847.48
  5. Step 5: Solve for x
    x = 871,931,847.48/45,931.86
  6. Step 6: Final answer
    x = 18,983.16

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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.