Home / 56,853.19-78,457.71-31,360.45

Finding the Fourth Proportional to 56,853.19, 78,457.71 and 31,360.45

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Solution

The fourth proportional to 56,853.19, 78,457.71 and 31,360.45 is: 43,277.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853.19 : 78,457.71 = 31,360.45 : x
  2. Step 2: Convert to fraction form
    56,853.19/78,457.71 = 31,360.45/x
  3. Step 3: Cross multiply
    56,853.19x = 78,457.71 × 31,360.45
  4. Step 4: Simplify right side
    56,853.19x = 2,460,469,091.57
  5. Step 5: Solve for x
    x = 2,460,469,091.57/56,853.19
  6. Step 6: Final answer
    x = 43,277.59

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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.