Home / 55,501.20-76,587.28-31,623.21

Finding the Fourth Proportional to 55,501.20, 76,587.28 and 31,623.21

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Solution

The fourth proportional to 55,501.20, 76,587.28 and 31,623.21 is: 43,637.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,501.20 : 76,587.28 = 31,623.21 : x
  2. Step 2: Convert to fraction form
    55,501.20/76,587.28 = 31,623.21/x
  3. Step 3: Cross multiply
    55,501.20x = 76,587.28 × 31,623.21
  4. Step 4: Simplify right side
    55,501.20x = 2,421,935,638.77
  5. Step 5: Solve for x
    x = 2,421,935,638.77/55,501.20
  6. Step 6: Final answer
    x = 43,637.54

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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.