Home / 98,780.48-136,316-53,457.46

Finding the Fourth Proportional to 98,780.48, 136,316 and 53,457.46

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Solution

The fourth proportional to 98,780.48, 136,316 and 53,457.46 is: 73,770.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,780.48 : 136,316 = 53,457.46 : x
  2. Step 2: Convert to fraction form
    98,780.48/136,316 = 53,457.46/x
  3. Step 3: Cross multiply
    98,780.48x = 136,316 × 53,457.46
  4. Step 4: Simplify right side
    98,780.48x = 7,287,107,117.36
  5. Step 5: Solve for x
    x = 7,287,107,117.36/98,780.48
  6. Step 6: Final answer
    x = 73,770.72

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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.