Home / 51,419.79-70,956.36-28,448.28

Finding the Fourth Proportional to 51,419.79, 70,956.36 and 28,448.28

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Solution

The fourth proportional to 51,419.79, 70,956.36 and 28,448.28 is: 39,256.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,419.79 : 70,956.36 = 28,448.28 : x
  2. Step 2: Convert to fraction form
    51,419.79/70,956.36 = 28,448.28/x
  3. Step 3: Cross multiply
    51,419.79x = 70,956.36 × 28,448.28
  4. Step 4: Simplify right side
    51,419.79x = 2,018,586,397.06
  5. Step 5: Solve for x
    x = 2,018,586,397.06/51,419.79
  6. Step 6: Final answer
    x = 39,256.99

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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.