Home / 55,379.64-76,430.31-31,510.06

Finding the Fourth Proportional to 55,379.64, 76,430.31 and 31,510.06

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Solution

The fourth proportional to 55,379.64, 76,430.31 and 31,510.06 is: 43,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,379.64 : 76,430.31 = 31,510.06 : x
  2. Step 2: Convert to fraction form
    55,379.64/76,430.31 = 31,510.06/x
  3. Step 3: Cross multiply
    55,379.64x = 76,430.31 × 31,510.06
  4. Step 4: Simplify right side
    55,379.64x = 2,408,323,462.84
  5. Step 5: Solve for x
    x = 2,408,323,462.84/55,379.64
  6. Step 6: Final answer
    x = 43,487.52

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1.5x scale

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.