Home / 93,878.28-129,547.08-51,435.90

Finding the Fourth Proportional to 93,878.28, 129,547.08 and 51,435.90

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Solution

The fourth proportional to 93,878.28, 129,547.08 and 51,435.90 is: 70,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,878.28 : 129,547.08 = 51,435.90 : x
  2. Step 2: Convert to fraction form
    93,878.28/129,547.08 = 51,435.90/x
  3. Step 3: Cross multiply
    93,878.28x = 129,547.08 × 51,435.90
  4. Step 4: Simplify right side
    93,878.28x = 6,663,370,652.17
  5. Step 5: Solve for x
    x = 6,663,370,652.17/93,878.28
  6. Step 6: Final answer
    x = 70,978.83

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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.