Home / 42,735.17-64,110.05-13,152.35

Finding the Fourth Proportional to 42,735.17, 64,110.05 and 13,152.35

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Solution

The fourth proportional to 42,735.17, 64,110.05 and 13,152.35 is: 19,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,735.17 : 64,110.05 = 13,152.35 : x
  2. Step 2: Convert to fraction form
    42,735.17/64,110.05 = 13,152.35/x
  3. Step 3: Cross multiply
    42,735.17x = 64,110.05 × 13,152.35
  4. Step 4: Simplify right side
    42,735.17x = 843,197,429.81
  5. Step 5: Solve for x
    x = 843,197,429.81/42,735.17
  6. Step 6: Final answer
    x = 19,730.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.