Home / 72,339.04-99,821.40-40,501.16

Finding the Fourth Proportional to 72,339.04, 99,821.40 and 40,501.16

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Solution

The fourth proportional to 72,339.04, 99,821.40 and 40,501.16 is: 55,887.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,339.04 : 99,821.40 = 40,501.16 : x
  2. Step 2: Convert to fraction form
    72,339.04/99,821.40 = 40,501.16/x
  3. Step 3: Cross multiply
    72,339.04x = 99,821.40 × 40,501.16
  4. Step 4: Simplify right side
    72,339.04x = 4,042,882,492.82
  5. Step 5: Solve for x
    x = 4,042,882,492.82/72,339.04
  6. Step 6: Final answer
    x = 55,887.98

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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.