Home / 78,275.46-108,019.53-42,465.36

Finding the Fourth Proportional to 78,275.46, 108,019.53 and 42,465.36

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Solution

The fourth proportional to 78,275.46, 108,019.53 and 42,465.36 is: 58,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,275.46 : 108,019.53 = 42,465.36 : x
  2. Step 2: Convert to fraction form
    78,275.46/108,019.53 = 42,465.36/x
  3. Step 3: Cross multiply
    78,275.46x = 108,019.53 × 42,465.36
  4. Step 4: Simplify right side
    78,275.46x = 4,587,088,228.48
  5. Step 5: Solve for x
    x = 4,587,088,228.48/78,275.46
  6. Step 6: Final answer
    x = 58,601.87

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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.