Home / 72,085.42-99,451.49-45,218.13

Finding the Fourth Proportional to 72,085.42, 99,451.49 and 45,218.13

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Solution

The fourth proportional to 72,085.42, 99,451.49 and 45,218.13 is: 62,384.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,085.42 : 99,451.49 = 45,218.13 : x
  2. Step 2: Convert to fraction form
    72,085.42/99,451.49 = 45,218.13/x
  3. Step 3: Cross multiply
    72,085.42x = 99,451.49 × 45,218.13
  4. Step 4: Simplify right side
    72,085.42x = 4,497,010,403.51
  5. Step 5: Solve for x
    x = 4,497,010,403.51/72,085.42
  6. Step 6: Final answer
    x = 62,384.47

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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.