Home / 98,336.60-135,664.86-56,916.34

Finding the Fourth Proportional to 98,336.60, 135,664.86 and 56,916.34

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Solution

The fourth proportional to 98,336.60, 135,664.86 and 56,916.34 is: 78,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,336.60 : 135,664.86 = 56,916.34 : x
  2. Step 2: Convert to fraction form
    98,336.60/135,664.86 = 56,916.34/x
  3. Step 3: Cross multiply
    98,336.60x = 135,664.86 × 56,916.34
  4. Step 4: Simplify right side
    98,336.60x = 7,721,547,297.81
  5. Step 5: Solve for x
    x = 7,721,547,297.81/98,336.60
  6. Step 6: Final answer
    x = 78,521.60

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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.