Home / 112,731.72-169,017.48-56,531.28

Finding the Fourth Proportional to 112,731.72, 169,017.48 and 56,531.28

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Solution

The fourth proportional to 112,731.72, 169,017.48 and 56,531.28 is: 84,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,731.72 : 169,017.48 = 56,531.28 : x
  2. Step 2: Convert to fraction form
    112,731.72/169,017.48 = 56,531.28/x
  3. Step 3: Cross multiply
    112,731.72x = 169,017.48 × 56,531.28
  4. Step 4: Simplify right side
    112,731.72x = 9,554,774,486.77
  5. Step 5: Solve for x
    x = 9,554,774,486.77/112,731.72
  6. Step 6: Final answer
    x = 84,756.75

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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.