Home / 76,416.36-105,454.98-42,425.34

Finding the Fourth Proportional to 76,416.36, 105,454.98 and 42,425.34

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Solution

The fourth proportional to 76,416.36, 105,454.98 and 42,425.34 is: 58,547.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,416.36 : 105,454.98 = 42,425.34 : x
  2. Step 2: Convert to fraction form
    76,416.36/105,454.98 = 42,425.34/x
  3. Step 3: Cross multiply
    76,416.36x = 105,454.98 × 42,425.34
  4. Step 4: Simplify right side
    76,416.36x = 4,473,963,381.19
  5. Step 5: Solve for x
    x = 4,473,963,381.19/76,416.36
  6. Step 6: Final answer
    x = 58,547.19

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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.