Home / 93,427.40-139,987.20-53,915.60

Finding the Fourth Proportional to 93,427.40, 139,987.20 and 53,915.60

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Solution

The fourth proportional to 93,427.40, 139,987.20 and 53,915.60 is: 80,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,427.40 : 139,987.20 = 53,915.60 : x
  2. Step 2: Convert to fraction form
    93,427.40/139,987.20 = 53,915.60/x
  3. Step 3: Cross multiply
    93,427.40x = 139,987.20 × 53,915.60
  4. Step 4: Simplify right side
    93,427.40x = 7,547,493,880.32
  5. Step 5: Solve for x
    x = 7,547,493,880.32/93,427.40
  6. Step 6: Final answer
    x = 80,784.59

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1.5x scale

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.