Home / 93,426.30-128,931.12-53,145.84

Finding the Fourth Proportional to 93,426.30, 128,931.12 and 53,145.84

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Solution

The fourth proportional to 93,426.30, 128,931.12 and 53,145.84 is: 73,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,426.30 : 128,931.12 = 53,145.84 : x
  2. Step 2: Convert to fraction form
    93,426.30/128,931.12 = 53,145.84/x
  3. Step 3: Cross multiply
    93,426.30x = 128,931.12 × 53,145.84
  4. Step 4: Simplify right side
    93,426.30x = 6,852,152,674.54
  5. Step 5: Solve for x
    x = 6,852,152,674.54/93,426.30
  6. Step 6: Final answer
    x = 73,342.87

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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.