Home / 64,430.28-96,655.50-20,047.68

Finding the Fourth Proportional to 64,430.28, 96,655.50 and 20,047.68

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Solution

The fourth proportional to 64,430.28, 96,655.50 and 20,047.68 is: 30,074.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,430.28 : 96,655.50 = 20,047.68 : x
  2. Step 2: Convert to fraction form
    64,430.28/96,655.50 = 20,047.68/x
  3. Step 3: Cross multiply
    64,430.28x = 96,655.50 × 20,047.68
  4. Step 4: Simplify right side
    64,430.28x = 1,937,718,534.24
  5. Step 5: Solve for x
    x = 1,937,718,534.24/64,430.28
  6. Step 6: Final answer
    x = 30,074.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.