Home / 105,271.84-145,277.04-57,527.20

Finding the Fourth Proportional to 105,271.84, 145,277.04 and 57,527.20

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Solution

The fourth proportional to 105,271.84, 145,277.04 and 57,527.20 is: 79,388.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,271.84 : 145,277.04 = 57,527.20 : x
  2. Step 2: Convert to fraction form
    105,271.84/145,277.04 = 57,527.20/x
  3. Step 3: Cross multiply
    105,271.84x = 145,277.04 × 57,527.20
  4. Step 4: Simplify right side
    105,271.84x = 8,357,381,335.49
  5. Step 5: Solve for x
    x = 8,357,381,335.49/105,271.84
  6. Step 6: Final answer
    x = 79,388.57

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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.