Home / 104,679.40-144,463.47-56,931.79

Finding the Fourth Proportional to 104,679.40, 144,463.47 and 56,931.79

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Solution

The fourth proportional to 104,679.40, 144,463.47 and 56,931.79 is: 78,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,679.40 : 144,463.47 = 56,931.79 : x
  2. Step 2: Convert to fraction form
    104,679.40/144,463.47 = 56,931.79/x
  3. Step 3: Cross multiply
    104,679.40x = 144,463.47 × 56,931.79
  4. Step 4: Simplify right side
    104,679.40x = 8,224,563,936.71
  5. Step 5: Solve for x
    x = 8,224,563,936.71/104,679.40
  6. Step 6: Final answer
    x = 78,569.08

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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.