Home / 69,814.37-96,402-64,749.08

Finding the Fourth Proportional to 69,814.37, 96,402 and 64,749.08

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Solution

The fourth proportional to 69,814.37, 96,402 and 64,749.08 is: 89,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,814.37 : 96,402 = 64,749.08 : x
  2. Step 2: Convert to fraction form
    69,814.37/96,402 = 64,749.08/x
  3. Step 3: Cross multiply
    69,814.37x = 96,402 × 64,749.08
  4. Step 4: Simplify right side
    69,814.37x = 6,241,940,810.16
  5. Step 5: Solve for x
    x = 6,241,940,810.16/69,814.37
  6. Step 6: Final answer
    x = 89,407.68

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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.