Home / 74,830.36-111,698.04-65,973.28

Finding the Fourth Proportional to 74,830.36, 111,698.04 and 65,973.28

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Solution

The fourth proportional to 74,830.36, 111,698.04 and 65,973.28 is: 98,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,830.36 : 111,698.04 = 65,973.28 : x
  2. Step 2: Convert to fraction form
    74,830.36/111,698.04 = 65,973.28/x
  3. Step 3: Cross multiply
    74,830.36x = 111,698.04 × 65,973.28
  4. Step 4: Simplify right side
    74,830.36x = 7,369,086,068.37
  5. Step 5: Solve for x
    x = 7,369,086,068.37/74,830.36
  6. Step 6: Final answer
    x = 98,477.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.