Home / 99,887.02-137,848.27-57,445.58

Finding the Fourth Proportional to 99,887.02, 137,848.27 and 57,445.58

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Solution

The fourth proportional to 99,887.02, 137,848.27 and 57,445.58 is: 79,277.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,887.02 : 137,848.27 = 57,445.58 : x
  2. Step 2: Convert to fraction form
    99,887.02/137,848.27 = 57,445.58/x
  3. Step 3: Cross multiply
    99,887.02x = 137,848.27 × 57,445.58
  4. Step 4: Simplify right side
    99,887.02x = 7,918,773,822.15
  5. Step 5: Solve for x
    x = 7,918,773,822.15/99,887.02
  6. Step 6: Final answer
    x = 79,277.31

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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.