Home / 76,509.36-105,582.36-42,975.60

Finding the Fourth Proportional to 76,509.36, 105,582.36 and 42,975.60

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Solution

The fourth proportional to 76,509.36, 105,582.36 and 42,975.60 is: 59,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,509.36 : 105,582.36 = 42,975.60 : x
  2. Step 2: Convert to fraction form
    76,509.36/105,582.36 = 42,975.60/x
  3. Step 3: Cross multiply
    76,509.36x = 105,582.36 × 42,975.60
  4. Step 4: Simplify right side
    76,509.36x = 4,537,465,270.42
  5. Step 5: Solve for x
    x = 4,537,465,270.42/76,509.36
  6. Step 6: Final answer
    x = 59,306.02

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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.