Home / 61,218.18-91,860.08-56,756.70

Finding the Fourth Proportional to 61,218.18, 91,860.08 and 56,756.70

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Solution

The fourth proportional to 61,218.18, 91,860.08 and 56,756.70 is: 85,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,218.18 : 91,860.08 = 56,756.70 : x
  2. Step 2: Convert to fraction form
    61,218.18/91,860.08 = 56,756.70/x
  3. Step 3: Cross multiply
    61,218.18x = 91,860.08 × 56,756.70
  4. Step 4: Simplify right side
    61,218.18x = 5,213,674,718.75
  5. Step 5: Solve for x
    x = 5,213,674,718.75/61,218.18
  6. Step 6: Final answer
    x = 85,165.46

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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.