Home / 55,421.01-76,469.67-31,541.40

Finding the Fourth Proportional to 55,421.01, 76,469.67 and 31,541.40

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Solution

The fourth proportional to 55,421.01, 76,469.67 and 31,541.40 is: 43,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.01 : 76,469.67 = 31,541.40 : x
  2. Step 2: Convert to fraction form
    55,421.01/76,469.67 = 31,541.40/x
  3. Step 3: Cross multiply
    55,421.01x = 76,469.67 × 31,541.40
  4. Step 4: Simplify right side
    55,421.01x = 2,411,960,449.34
  5. Step 5: Solve for x
    x = 2,411,960,449.34/55,421.01
  6. Step 6: Final answer
    x = 43,520.69

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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.