Home / 72,146.99-99,565.05-40,317.23

Finding the Fourth Proportional to 72,146.99, 99,565.05 and 40,317.23

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Solution

The fourth proportional to 72,146.99, 99,565.05 and 40,317.23 is: 55,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,146.99 : 99,565.05 = 40,317.23 : x
  2. Step 2: Convert to fraction form
    72,146.99/99,565.05 = 40,317.23/x
  3. Step 3: Cross multiply
    72,146.99x = 99,565.05 × 40,317.23
  4. Step 4: Simplify right side
    72,146.99x = 4,014,186,522.99
  5. Step 5: Solve for x
    x = 4,014,186,522.99/72,146.99
  6. Step 6: Final answer
    x = 55,639.01

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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.