Home / 105,301.02-145,315.52-57,554.40

Finding the Fourth Proportional to 105,301.02, 145,315.52 and 57,554.40

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Solution

The fourth proportional to 105,301.02, 145,315.52 and 57,554.40 is: 79,425.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,301.02 : 145,315.52 = 57,554.40 : x
  2. Step 2: Convert to fraction form
    105,301.02/145,315.52 = 57,554.40/x
  3. Step 3: Cross multiply
    105,301.02x = 145,315.52 × 57,554.40
  4. Step 4: Simplify right side
    105,301.02x = 8,363,547,564.29
  5. Step 5: Solve for x
    x = 8,363,547,564.29/105,301.02
  6. Step 6: Final answer
    x = 79,425.13

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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.