Home / 37,128.65-55,693.91-31,830.64

Finding the Fourth Proportional to 37,128.65, 55,693.91 and 31,830.64

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Solution

The fourth proportional to 37,128.65, 55,693.91 and 31,830.64 is: 47,746.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,128.65 : 55,693.91 = 31,830.64 : x
  2. Step 2: Convert to fraction form
    37,128.65/55,693.91 = 31,830.64/x
  3. Step 3: Cross multiply
    37,128.65x = 55,693.91 × 31,830.64
  4. Step 4: Simplify right side
    37,128.65x = 1,772,772,739.74
  5. Step 5: Solve for x
    x = 1,772,772,739.74/37,128.65
  6. Step 6: Final answer
    x = 47,746.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.