Home / 64,931.08-89,606.82-39,766.36

Finding the Fourth Proportional to 64,931.08, 89,606.82 and 39,766.36

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Solution

The fourth proportional to 64,931.08, 89,606.82 and 39,766.36 is: 54,878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,931.08 : 89,606.82 = 39,766.36 : x
  2. Step 2: Convert to fraction form
    64,931.08/89,606.82 = 39,766.36/x
  3. Step 3: Cross multiply
    64,931.08x = 89,606.82 × 39,766.36
  4. Step 4: Simplify right side
    64,931.08x = 3,563,337,062.58
  5. Step 5: Solve for x
    x = 3,563,337,062.58/64,931.08
  6. Step 6: Final answer
    x = 54,878.76

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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.