Home / 90,072.18-124,307.28-52,344

Finding the Fourth Proportional to 90,072.18, 124,307.28 and 52,344

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Solution

The fourth proportional to 90,072.18, 124,307.28 and 52,344 is: 72,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,072.18 : 124,307.28 = 52,344 : x
  2. Step 2: Convert to fraction form
    90,072.18/124,307.28 = 52,344/x
  3. Step 3: Cross multiply
    90,072.18x = 124,307.28 × 52,344
  4. Step 4: Simplify right side
    90,072.18x = 6,506,740,264.32
  5. Step 5: Solve for x
    x = 6,506,740,264.32/90,072.18
  6. Step 6: Final answer
    x = 72,239.18

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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.