Home / 99,828.04-137,746.98-57,378.60

Finding the Fourth Proportional to 99,828.04, 137,746.98 and 57,378.60

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Solution

The fourth proportional to 99,828.04, 137,746.98 and 57,378.60 is: 79,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,828.04 : 137,746.98 = 57,378.60 : x
  2. Step 2: Convert to fraction form
    99,828.04/137,746.98 = 57,378.60/x
  3. Step 3: Cross multiply
    99,828.04x = 137,746.98 × 57,378.60
  4. Step 4: Simplify right side
    99,828.04x = 7,903,728,866.63
  5. Step 5: Solve for x
    x = 7,903,728,866.63/99,828.04
  6. Step 6: Final answer
    x = 79,173.44

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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.