Home / 91,116.02-136,674-48,938.06

Finding the Fourth Proportional to 91,116.02, 136,674 and 48,938.06

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Solution

The fourth proportional to 91,116.02, 136,674 and 48,938.06 is: 73,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,116.02 : 136,674 = 48,938.06 : x
  2. Step 2: Convert to fraction form
    91,116.02/136,674 = 48,938.06/x
  3. Step 3: Cross multiply
    91,116.02x = 136,674 × 48,938.06
  4. Step 4: Simplify right side
    91,116.02x = 6,688,559,729.07
  5. Step 5: Solve for x
    x = 6,688,559,729.07/91,116.02
  6. Step 6: Final answer
    x = 73,407.07

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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.