Home / 51,985.18-77,977.04-12,541.96

Finding the Fourth Proportional to 51,985.18, 77,977.04 and 12,541.96

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Solution

The fourth proportional to 51,985.18, 77,977.04 and 12,541.96 is: 18,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,985.18 : 77,977.04 = 12,541.96 : x
  2. Step 2: Convert to fraction form
    51,985.18/77,977.04 = 12,541.96/x
  3. Step 3: Cross multiply
    51,985.18x = 77,977.04 × 12,541.96
  4. Step 4: Simplify right side
    51,985.18x = 977,984,526.71
  5. Step 5: Solve for x
    x = 977,984,526.71/51,985.18
  6. Step 6: Final answer
    x = 18,812.76

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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.