Home / 64,646.32-89,190.48-52,689.12

Finding the Fourth Proportional to 64,646.32, 89,190.48 and 52,689.12

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Solution

The fourth proportional to 64,646.32, 89,190.48 and 52,689.12 is: 72,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,646.32 : 89,190.48 = 52,689.12 : x
  2. Step 2: Convert to fraction form
    64,646.32/89,190.48 = 52,689.12/x
  3. Step 3: Cross multiply
    64,646.32x = 89,190.48 × 52,689.12
  4. Step 4: Simplify right side
    64,646.32x = 4,699,367,903.58
  5. Step 5: Solve for x
    x = 4,699,367,903.58/64,646.32
  6. Step 6: Final answer
    x = 72,693.51

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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.