Home / 93,085.36-128,458.67-55,352.32

Finding the Fourth Proportional to 93,085.36, 128,458.67 and 55,352.32

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Solution

The fourth proportional to 93,085.36, 128,458.67 and 55,352.32 is: 76,386.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,085.36 : 128,458.67 = 55,352.32 : x
  2. Step 2: Convert to fraction form
    93,085.36/128,458.67 = 55,352.32/x
  3. Step 3: Cross multiply
    93,085.36x = 128,458.67 × 55,352.32
  4. Step 4: Simplify right side
    93,085.36x = 7,110,485,408.61
  5. Step 5: Solve for x
    x = 7,110,485,408.61/93,085.36
  6. Step 6: Final answer
    x = 76,386.72

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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.