Home / 64,742.04-97,113-20,372.16

Finding the Fourth Proportional to 64,742.04, 97,113 and 20,372.16

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Solution

The fourth proportional to 64,742.04, 97,113 and 20,372.16 is: 30,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,742.04 : 97,113 = 20,372.16 : x
  2. Step 2: Convert to fraction form
    64,742.04/97,113 = 20,372.16/x
  3. Step 3: Cross multiply
    64,742.04x = 97,113 × 20,372.16
  4. Step 4: Simplify right side
    64,742.04x = 1,978,401,574.08
  5. Step 5: Solve for x
    x = 1,978,401,574.08/64,742.04
  6. Step 6: Final answer
    x = 30,558.22

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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.