Home / 145,087.12-217,679.28-56,343.52

Finding the Fourth Proportional to 145,087.12, 217,679.28 and 56,343.52

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Solution

The fourth proportional to 145,087.12, 217,679.28 and 56,343.52 is: 84,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,087.12 : 217,679.28 = 56,343.52 : x
  2. Step 2: Convert to fraction form
    145,087.12/217,679.28 = 56,343.52/x
  3. Step 3: Cross multiply
    145,087.12x = 217,679.28 × 56,343.52
  4. Step 4: Simplify right side
    145,087.12x = 12,264,816,866.27
  5. Step 5: Solve for x
    x = 12,264,816,866.27/145,087.12
  6. Step 6: Final answer
    x = 84,534.15

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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.