Home / 53,281.60-79,816.80-46,715.20

Finding the Fourth Proportional to 53,281.60, 79,816.80 and 46,715.20

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Solution

The fourth proportional to 53,281.60, 79,816.80 and 46,715.20 is: 69,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281.60 : 79,816.80 = 46,715.20 : x
  2. Step 2: Convert to fraction form
    53,281.60/79,816.80 = 46,715.20/x
  3. Step 3: Cross multiply
    53,281.60x = 79,816.80 × 46,715.20
  4. Step 4: Simplify right side
    53,281.60x = 3,728,657,775.36
  5. Step 5: Solve for x
    x = 3,728,657,775.36/53,281.60
  6. Step 6: Final answer
    x = 69,980.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.