Home / 56,756.96-78,324.72-31,607.36

Finding the Fourth Proportional to 56,756.96, 78,324.72 and 31,607.36

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Solution

The fourth proportional to 56,756.96, 78,324.72 and 31,607.36 is: 43,618.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756.96 : 78,324.72 = 31,607.36 : x
  2. Step 2: Convert to fraction form
    56,756.96/78,324.72 = 31,607.36/x
  3. Step 3: Cross multiply
    56,756.96x = 78,324.72 × 31,607.36
  4. Step 4: Simplify right side
    56,756.96x = 2,475,637,621.94
  5. Step 5: Solve for x
    x = 2,475,637,621.94/56,756.96
  6. Step 6: Final answer
    x = 43,618.22

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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.