Home / 86,880.72-119,885.28-48,642.36

Finding the Fourth Proportional to 86,880.72, 119,885.28 and 48,642.36

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Solution

The fourth proportional to 86,880.72, 119,885.28 and 48,642.36 is: 67,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,880.72 : 119,885.28 = 48,642.36 : x
  2. Step 2: Convert to fraction form
    86,880.72/119,885.28 = 48,642.36/x
  3. Step 3: Cross multiply
    86,880.72x = 119,885.28 × 48,642.36
  4. Step 4: Simplify right side
    86,880.72x = 5,831,502,948.46
  5. Step 5: Solve for x
    x = 5,831,502,948.46/86,880.72
  6. Step 6: Final answer
    x = 67,120.79

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1.5x scale

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.