Home / 85,011.02-117,314.88-47,285.28

Finding the Fourth Proportional to 85,011.02, 117,314.88 and 47,285.28

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Solution

The fourth proportional to 85,011.02, 117,314.88 and 47,285.28 is: 65,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,011.02 : 117,314.88 = 47,285.28 : x
  2. Step 2: Convert to fraction form
    85,011.02/117,314.88 = 47,285.28/x
  3. Step 3: Cross multiply
    85,011.02x = 117,314.88 × 47,285.28
  4. Step 4: Simplify right side
    85,011.02x = 5,547,266,948.97
  5. Step 5: Solve for x
    x = 5,547,266,948.97/85,011.02
  6. Step 6: Final answer
    x = 65,253.50

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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.