Home / 64,512.08-89,031.24-36,215.76

Finding the Fourth Proportional to 64,512.08, 89,031.24 and 36,215.76

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Solution

The fourth proportional to 64,512.08, 89,031.24 and 36,215.76 is: 49,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,512.08 : 89,031.24 = 36,215.76 : x
  2. Step 2: Convert to fraction form
    64,512.08/89,031.24 = 36,215.76/x
  3. Step 3: Cross multiply
    64,512.08x = 89,031.24 × 36,215.76
  4. Step 4: Simplify right side
    64,512.08x = 3,224,334,020.34
  5. Step 5: Solve for x
    x = 3,224,334,020.34/64,512.08
  6. Step 6: Final answer
    x = 49,980.31

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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.