Home / 64,875.40-97,313.10-18,128.20

Finding the Fourth Proportional to 64,875.40, 97,313.10 and 18,128.20

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Solution

The fourth proportional to 64,875.40, 97,313.10 and 18,128.20 is: 27,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,875.40 : 97,313.10 = 18,128.20 : x
  2. Step 2: Convert to fraction form
    64,875.40/97,313.10 = 18,128.20/x
  3. Step 3: Cross multiply
    64,875.40x = 97,313.10 × 18,128.20
  4. Step 4: Simplify right side
    64,875.40x = 1,764,111,339.42
  5. Step 5: Solve for x
    x = 1,764,111,339.42/64,875.40
  6. Step 6: Final answer
    x = 27,192.30

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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.