Home / 93,079.26-128,448.06-56,772.30

Finding the Fourth Proportional to 93,079.26, 128,448.06 and 56,772.30

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Solution

The fourth proportional to 93,079.26, 128,448.06 and 56,772.30 is: 78,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,079.26 : 128,448.06 = 56,772.30 : x
  2. Step 2: Convert to fraction form
    93,079.26/128,448.06 = 56,772.30/x
  3. Step 3: Cross multiply
    93,079.26x = 128,448.06 × 56,772.30
  4. Step 4: Simplify right side
    93,079.26x = 7,292,291,796.74
  5. Step 5: Solve for x
    x = 7,292,291,796.74/93,079.26
  6. Step 6: Final answer
    x = 78,344.97

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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.