Home / 64,762.24-97,159.56-20,387.20

Finding the Fourth Proportional to 64,762.24, 97,159.56 and 20,387.20

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Solution

The fourth proportional to 64,762.24, 97,159.56 and 20,387.20 is: 30,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,762.24 : 97,159.56 = 20,387.20 : x
  2. Step 2: Convert to fraction form
    64,762.24/97,159.56 = 20,387.20/x
  3. Step 3: Cross multiply
    64,762.24x = 97,159.56 × 20,387.20
  4. Step 4: Simplify right side
    64,762.24x = 1,980,811,381.63
  5. Step 5: Solve for x
    x = 1,980,811,381.63/64,762.24
  6. Step 6: Final answer
    x = 30,585.90

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1.5x scale

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.