Home / 89,031.02-122,862.45-50,790.49

Finding the Fourth Proportional to 89,031.02, 122,862.45 and 50,790.49

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Solution

The fourth proportional to 89,031.02, 122,862.45 and 50,790.49 is: 70,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,031.02 : 122,862.45 = 50,790.49 : x
  2. Step 2: Convert to fraction form
    89,031.02/122,862.45 = 50,790.49/x
  3. Step 3: Cross multiply
    89,031.02x = 122,862.45 × 50,790.49
  4. Step 4: Simplify right side
    89,031.02x = 6,240,243,921.41
  5. Step 5: Solve for x
    x = 6,240,243,921.41/89,031.02
  6. Step 6: Final answer
    x = 70,090.67

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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.