Home / 48,123.02-72,168.18-18,538.40

Finding the Fourth Proportional to 48,123.02, 72,168.18 and 18,538.40

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Solution

The fourth proportional to 48,123.02, 72,168.18 and 18,538.40 is: 27,801.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,123.02 : 72,168.18 = 18,538.40 : x
  2. Step 2: Convert to fraction form
    48,123.02/72,168.18 = 18,538.40/x
  3. Step 3: Cross multiply
    48,123.02x = 72,168.18 × 18,538.40
  4. Step 4: Simplify right side
    48,123.02x = 1,337,882,588.11
  5. Step 5: Solve for x
    x = 1,337,882,588.11/48,123.02
  6. Step 6: Final answer
    x = 27,801.30

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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.