Home / 78,777.48-118,106.04-39,362.22

Finding the Fourth Proportional to 78,777.48, 118,106.04 and 39,362.22

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Solution

The fourth proportional to 78,777.48, 118,106.04 and 39,362.22 is: 59,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,777.48 : 118,106.04 = 39,362.22 : x
  2. Step 2: Convert to fraction form
    78,777.48/118,106.04 = 39,362.22/x
  3. Step 3: Cross multiply
    78,777.48x = 118,106.04 × 39,362.22
  4. Step 4: Simplify right side
    78,777.48x = 4,648,915,929.81
  5. Step 5: Solve for x
    x = 4,648,915,929.81/78,777.48
  6. Step 6: Final answer
    x = 59,013.26

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1.5x scale

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.