Home / 72,700.04-100,325.58-40,869.20

Finding the Fourth Proportional to 72,700.04, 100,325.58 and 40,869.20

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Solution

The fourth proportional to 72,700.04, 100,325.58 and 40,869.20 is: 56,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,700.04 : 100,325.58 = 40,869.20 : x
  2. Step 2: Convert to fraction form
    72,700.04/100,325.58 = 40,869.20/x
  3. Step 3: Cross multiply
    72,700.04x = 100,325.58 × 40,869.20
  4. Step 4: Simplify right side
    72,700.04x = 4,100,226,194.14
  5. Step 5: Solve for x
    x = 4,100,226,194.14/72,700.04
  6. Step 6: Final answer
    x = 56,399.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.