Home / 101,731.40-140,391.02-56,411.30

Finding the Fourth Proportional to 101,731.40, 140,391.02 and 56,411.30

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Solution

The fourth proportional to 101,731.40, 140,391.02 and 56,411.30 is: 77,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,731.40 : 140,391.02 = 56,411.30 : x
  2. Step 2: Convert to fraction form
    101,731.40/140,391.02 = 56,411.30/x
  3. Step 3: Cross multiply
    101,731.40x = 140,391.02 × 56,411.30
  4. Step 4: Simplify right side
    101,731.40x = 7,919,638,962.51
  5. Step 5: Solve for x
    x = 7,919,638,962.51/101,731.40
  6. Step 6: Final answer
    x = 77,848.52

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1.5x scale

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.