Home / 97,811.04-134,980.32-55,368.64

Finding the Fourth Proportional to 97,811.04, 134,980.32 and 55,368.64

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Solution

The fourth proportional to 97,811.04, 134,980.32 and 55,368.64 is: 76,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,811.04 : 134,980.32 = 55,368.64 : x
  2. Step 2: Convert to fraction form
    97,811.04/134,980.32 = 55,368.64/x
  3. Step 3: Cross multiply
    97,811.04x = 134,980.32 × 55,368.64
  4. Step 4: Simplify right side
    97,811.04x = 7,473,676,745.16
  5. Step 5: Solve for x
    x = 7,473,676,745.16/97,811.04
  6. Step 6: Final answer
    x = 76,409.34

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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.