Home / 93,048.12-128,407.23-55,315.08

Finding the Fourth Proportional to 93,048.12, 128,407.23 and 55,315.08

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Solution

The fourth proportional to 93,048.12, 128,407.23 and 55,315.08 is: 76,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,048.12 : 128,407.23 = 55,315.08 : x
  2. Step 2: Convert to fraction form
    93,048.12/128,407.23 = 55,315.08/x
  3. Step 3: Cross multiply
    93,048.12x = 128,407.23 × 55,315.08
  4. Step 4: Simplify right side
    93,048.12x = 7,102,856,200.03
  5. Step 5: Solve for x
    x = 7,102,856,200.03/93,048.12
  6. Step 6: Final answer
    x = 76,335.30

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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.