Home / 76,445.29-105,497.16-42,454.34

Finding the Fourth Proportional to 76,445.29, 105,497.16 and 42,454.34

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Solution

The fourth proportional to 76,445.29, 105,497.16 and 42,454.34 is: 58,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,445.29 : 105,497.16 = 42,454.34 : x
  2. Step 2: Convert to fraction form
    76,445.29/105,497.16 = 42,454.34/x
  3. Step 3: Cross multiply
    76,445.29x = 105,497.16 × 42,454.34
  4. Step 4: Simplify right side
    76,445.29x = 4,478,812,366.81
  5. Step 5: Solve for x
    x = 4,478,812,366.81/76,445.29
  6. Step 6: Final answer
    x = 58,588.47

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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.