Home / 56,604.47-78,114.98-31,113.20

Finding the Fourth Proportional to 56,604.47, 78,114.98 and 31,113.20

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Solution

The fourth proportional to 56,604.47, 78,114.98 and 31,113.20 is: 42,936.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,604.47 : 78,114.98 = 31,113.20 : x
  2. Step 2: Convert to fraction form
    56,604.47/78,114.98 = 31,113.20/x
  3. Step 3: Cross multiply
    56,604.47x = 78,114.98 × 31,113.20
  4. Step 4: Simplify right side
    56,604.47x = 2,430,406,605.16
  5. Step 5: Solve for x
    x = 2,430,406,605.16/56,604.47
  6. Step 6: Final answer
    x = 42,936.66

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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.