Home / 85,466.19-128,193.09-37,439.67

Finding the Fourth Proportional to 85,466.19, 128,193.09 and 37,439.67

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Solution

The fourth proportional to 85,466.19, 128,193.09 and 37,439.67 is: 56,156.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,466.19 : 128,193.09 = 37,439.67 : x
  2. Step 2: Convert to fraction form
    85,466.19/128,193.09 = 37,439.67/x
  3. Step 3: Cross multiply
    85,466.19x = 128,193.09 × 37,439.67
  4. Step 4: Simplify right side
    85,466.19x = 4,799,506,985.88
  5. Step 5: Solve for x
    x = 4,799,506,985.88/85,466.19
  6. Step 6: Final answer
    x = 56,156.79

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1.5x scale

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.