Home / 56,778.76-78,364.02-31,636.36

Finding the Fourth Proportional to 56,778.76, 78,364.02 and 31,636.36

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Solution

The fourth proportional to 56,778.76, 78,364.02 and 31,636.36 is: 43,663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,778.76 : 78,364.02 = 31,636.36 : x
  2. Step 2: Convert to fraction form
    56,778.76/78,364.02 = 31,636.36/x
  3. Step 3: Cross multiply
    56,778.76x = 78,364.02 × 31,636.36
  4. Step 4: Simplify right side
    56,778.76x = 2,479,152,347.77
  5. Step 5: Solve for x
    x = 2,479,152,347.77/56,778.76
  6. Step 6: Final answer
    x = 43,663.38

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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.