Home / 291,417.03-437,126.40-81,055.17

Finding the Fourth Proportional to 291,417.03, 437,126.40 and 81,055.17

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Solution

The fourth proportional to 291,417.03, 437,126.40 and 81,055.17 is: 121,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,417.03 : 437,126.40 = 81,055.17 : x
  2. Step 2: Convert to fraction form
    291,417.03/437,126.40 = 81,055.17/x
  3. Step 3: Cross multiply
    291,417.03x = 437,126.40 × 81,055.17
  4. Step 4: Simplify right side
    291,417.03x = 35,431,354,663.49
  5. Step 5: Solve for x
    x = 35,431,354,663.49/291,417.03
  6. Step 6: Final answer
    x = 121,582.99

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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.