Home / 79,386.64-109,559.10-52,482.40

Finding the Fourth Proportional to 79,386.64, 109,559.10 and 52,482.40

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Solution

The fourth proportional to 79,386.64, 109,559.10 and 52,482.40 is: 72,429.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,386.64 : 109,559.10 = 52,482.40 : x
  2. Step 2: Convert to fraction form
    79,386.64/109,559.10 = 52,482.40/x
  3. Step 3: Cross multiply
    79,386.64x = 109,559.10 × 52,482.40
  4. Step 4: Simplify right side
    79,386.64x = 5,749,924,509.84
  5. Step 5: Solve for x
    x = 5,749,924,509.84/79,386.64
  6. Step 6: Final answer
    x = 72,429.37

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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.