Home / 48,583.40-72,779.10-42,810.60

Finding the Fourth Proportional to 48,583.40, 72,779.10 and 42,810.60

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Solution

The fourth proportional to 48,583.40, 72,779.10 and 42,810.60 is: 64,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,583.40 : 72,779.10 = 42,810.60 : x
  2. Step 2: Convert to fraction form
    48,583.40/72,779.10 = 42,810.60/x
  3. Step 3: Cross multiply
    48,583.40x = 72,779.10 × 42,810.60
  4. Step 4: Simplify right side
    48,583.40x = 3,115,716,938.46
  5. Step 5: Solve for x
    x = 3,115,716,938.46/48,583.40
  6. Step 6: Final answer
    x = 64,131.31

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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.