Home / 64,316.21-88,707.56-56,344.59

Finding the Fourth Proportional to 64,316.21, 88,707.56 and 56,344.59

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Solution

The fourth proportional to 64,316.21, 88,707.56 and 56,344.59 is: 77,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,316.21 : 88,707.56 = 56,344.59 : x
  2. Step 2: Convert to fraction form
    64,316.21/88,707.56 = 56,344.59/x
  3. Step 3: Cross multiply
    64,316.21x = 88,707.56 × 56,344.59
  4. Step 4: Simplify right side
    64,316.21x = 4,998,190,816.38
  5. Step 5: Solve for x
    x = 4,998,190,816.38/64,316.21
  6. Step 6: Final answer
    x = 77,712.78

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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.