Home / 56,609.52-78,120.36-31,458.48

Finding the Fourth Proportional to 56,609.52, 78,120.36 and 31,458.48

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Solution

The fourth proportional to 56,609.52, 78,120.36 and 31,458.48 is: 43,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,609.52 : 78,120.36 = 31,458.48 : x
  2. Step 2: Convert to fraction form
    56,609.52/78,120.36 = 31,458.48/x
  3. Step 3: Cross multiply
    56,609.52x = 78,120.36 × 31,458.48
  4. Step 4: Simplify right side
    56,609.52x = 2,457,547,782.65
  5. Step 5: Solve for x
    x = 2,457,547,782.65/56,609.52
  6. Step 6: Final answer
    x = 43,412.27

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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.