Home / 93,479.43-128,973.69-55,242.45

Finding the Fourth Proportional to 93,479.43, 128,973.69 and 55,242.45

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Solution

The fourth proportional to 93,479.43, 128,973.69 and 55,242.45 is: 76,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,479.43 : 128,973.69 = 55,242.45 : x
  2. Step 2: Convert to fraction form
    93,479.43/128,973.69 = 55,242.45/x
  3. Step 3: Cross multiply
    93,479.43x = 128,973.69 × 55,242.45
  4. Step 4: Simplify right side
    93,479.43x = 7,124,822,621.14
  5. Step 5: Solve for x
    x = 7,124,822,621.14/93,479.43
  6. Step 6: Final answer
    x = 76,218.08

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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.