Home / 77,638.04-116,376.28-52,680.32

Finding the Fourth Proportional to 77,638.04, 116,376.28 and 52,680.32

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Solution

The fourth proportional to 77,638.04, 116,376.28 and 52,680.32 is: 78,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,638.04 : 116,376.28 = 52,680.32 : x
  2. Step 2: Convert to fraction form
    77,638.04/116,376.28 = 52,680.32/x
  3. Step 3: Cross multiply
    77,638.04x = 116,376.28 × 52,680.32
  4. Step 4: Simplify right side
    77,638.04x = 6,130,739,670.81
  5. Step 5: Solve for x
    x = 6,130,739,670.81/77,638.04
  6. Step 6: Final answer
    x = 78,965.67

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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.