Home / 91,329.60-125,968.10-61,061.52

Finding the Fourth Proportional to 91,329.60, 125,968.10 and 61,061.52

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Solution

The fourth proportional to 91,329.60, 125,968.10 and 61,061.52 is: 84,220.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,329.60 : 125,968.10 = 61,061.52 : x
  2. Step 2: Convert to fraction form
    91,329.60/125,968.10 = 61,061.52/x
  3. Step 3: Cross multiply
    91,329.60x = 125,968.10 × 61,061.52
  4. Step 4: Simplify right side
    91,329.60x = 7,691,803,657.51
  5. Step 5: Solve for x
    x = 7,691,803,657.51/91,329.60
  6. Step 6: Final answer
    x = 84,220.27

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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.