Home / 61,900.20-85,335-43,988.67

Finding the Fourth Proportional to 61,900.20, 85,335 and 43,988.67

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Solution

The fourth proportional to 61,900.20, 85,335 and 43,988.67 is: 60,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.20 : 85,335 = 43,988.67 : x
  2. Step 2: Convert to fraction form
    61,900.20/85,335 = 43,988.67/x
  3. Step 3: Cross multiply
    61,900.20x = 85,335 × 43,988.67
  4. Step 4: Simplify right side
    61,900.20x = 3,753,773,154.45
  5. Step 5: Solve for x
    x = 3,753,773,154.45/61,900.20
  6. Step 6: Final answer
    x = 60,642.34

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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.