Home / 56,851.79-78,454.40-31,360.53

Finding the Fourth Proportional to 56,851.79, 78,454.40 and 31,360.53

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Solution

The fourth proportional to 56,851.79, 78,454.40 and 31,360.53 is: 43,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,851.79 : 78,454.40 = 31,360.53 : x
  2. Step 2: Convert to fraction form
    56,851.79/78,454.40 = 31,360.53/x
  3. Step 3: Cross multiply
    56,851.79x = 78,454.40 × 31,360.53
  4. Step 4: Simplify right side
    56,851.79x = 2,460,371,408.03
  5. Step 5: Solve for x
    x = 2,460,371,408.03/56,851.79
  6. Step 6: Final answer
    x = 43,276.94

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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.