Home / 56,853.15-78,453.66-31,357.99

Finding the Fourth Proportional to 56,853.15, 78,453.66 and 31,357.99

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Solution

The fourth proportional to 56,853.15, 78,453.66 and 31,357.99 is: 43,271.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853.15 : 78,453.66 = 31,357.99 : x
  2. Step 2: Convert to fraction form
    56,853.15/78,453.66 = 31,357.99/x
  3. Step 3: Cross multiply
    56,853.15x = 78,453.66 × 31,357.99
  4. Step 4: Simplify right side
    56,853.15x = 2,460,149,085.74
  5. Step 5: Solve for x
    x = 2,460,149,085.74/56,853.15
  6. Step 6: Final answer
    x = 43,271.99

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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.