Home / 66,296.36-91,500.34-42,421.88

Finding the Fourth Proportional to 66,296.36, 91,500.34 and 42,421.88

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Solution

The fourth proportional to 66,296.36, 91,500.34 and 42,421.88 is: 58,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,296.36 : 91,500.34 = 42,421.88 : x
  2. Step 2: Convert to fraction form
    66,296.36/91,500.34 = 42,421.88/x
  3. Step 3: Cross multiply
    66,296.36x = 91,500.34 × 42,421.88
  4. Step 4: Simplify right side
    66,296.36x = 3,881,616,443.44
  5. Step 5: Solve for x
    x = 3,881,616,443.44/66,296.36
  6. Step 6: Final answer
    x = 58,549.47

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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.